Abstract:
A book block and/or set of print matter is contemplated to be bound in individual sections through various techniques. These sections will be unbound or stitched to section covers or glued to section covers. These sections will then be augmented with attachment members to allow sections to be secured to each other or a book cover. These attachment members may be secured to the sections through a permanent or non-permanent manner, ranging including tension and/or clamping and/or crimping and/or sewing/stitching and/or gluing. The user of the book will then be allowed to select and detach individual sections of the book block or set of print matter without destroying the integrity of the entire book block or set of print matter. Likewise, publishers of the book are now able to update and/or replace sections of an entire book block and/or print matter without needing to reprint and republish the whole book or set of print matter.

Description:
[0001]    This U.S. patent application claims priority to U.S. Provisional Patent Application Ser. No. 61/247,382, filed Sep. 30, 2009; and is a continuation-in-part of U.S. patent application Ser. No. 12/255,582, filed Oct. 21, 2008; and is a continuation-in-part of U.S. patent application Ser. No. 12/255,593, filed Oct. 21, 2008; both of which are continuations-in-part of U.S. patent application Ser. No. 11,797,100, now U.S. Pat. No. 7,744,128, which claims priority to U.S. Provisional Patent Application Ser. No. 60/796,167, filed Apr. 28, 2006; the contents of all of which are hereby incorporated by reference herein in their entirety into this disclosure. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    1. Field of the Invention 
         [0003]    The present invention relates to supporting of printed matter. In particular, the present invention relates to the support of various reading and/or viewing printed material including books, brochures, catalogs and the like. 
         [0004]    2. Background of the Invention 
         [0005]    As the volume of literature increases, additional costs are associated with the manufacture of printed material, including books, brochures, catalogs, magazines, and the like. Some of this printed matter becomes very large or heavy, particularly because of their tremendous volume or size. Despite the advancement of literature and information, conventional methods of manufacture in the art of bookbinding have been relatively constant and have essentially been limited to (i) case binding and (ii) perfect binding. Traditional Smyth sewn books require a series of arranging, sewing, and gluing steps to adhere signatures (sections of the entire book) to the cover spine. Typically, textbooks and other large-mass books employ the Smyth sewn binding technique. 
         [0006]    Perfect bound books mainly require an adhesive binding between the book block and the cover. After the technological booms following World War II, perfect binding became an economical option for many publishers, making it a common practice in contemporary times. Nearly all paperback books, telephone books, and other small-mass books are bound using the perfect binding technique. 
         [0007]    Large-mass books are typically perfect bound or bound using the Smyth sewn technique. Many of these large-mass books are published in the form of textbooks or trade books for school students. Such large and heavy books take their toll on those who have to carry these books on a daily or regular basis, typically students. The American Chiropractic Association (ACA) and the American Occupational Therapy Association (AOTA) states that children should not carry more than 10% of their bodyweight. Researchers have found, however, that children are carrying 22% of their bodyweight in studies conducted in the United States. 
         [0008]    The National Safety Council states that according to the US Consumer Product Safety Commission there were more than 21,000 backpack related injuries that ended up being treated in emergency rooms, clinics and doctors&#39; offices in 2003. The range of these injuries was widespread from contusions, to sprains, and even fractures. 
         [0009]    The American Chiropractic Association states in an August 2010 article that children have the same rate of back pain as full grown adults by the time they have reached just 14 years of age. This can cause chronic and long-term injury to the current and future generations of school children. 
         [0010]    Some subject matters require new versions of texts in order to account for changes that took place after the initial publication of the book. Using bookbinding methods of the art, the entire text is replaced when revisions are made to a sufficient number of sections. Some fields, such as legal texts, use “pocket parts,” which are smaller independent sections showing only the changes; but the main body of text is unchanged, and both the main body of text and the pocket part must be referenced in order to read the actual updated text. Using existing techniques of the art, there is no other way to replace merely a section of the book. 
         [0011]    Thus, there is a need in the art for a more effective technique for manufacturing printed matter such that portions of the printed matter may be carried independently of the other portions, and allowed to be changed, revised or replaced without having to do so for the entire volume in which such portion is a part. The technique should be simple to understand, use and manufacture so that it provides an efficient and less costly alternative to constant volume changes and/or provides an efficient method of carrying just one portion of a large size or volume printed matter. 
       SUMMARY OF THE INVENTION 
       [0012]    The present invention provides a unique technique of assembling, organizing and/or manufacturing bound or unbound print matter such that such matter may be easily taken apart into defined portions and each portion carried or reviewed independently of the other. Though examples throughout this application may focus on particular types of printed matter for sake of simplicity, it should be known that the techniques disclosed here are applicable to all types of matter having multiple portions as would be evident to one having ordinary skill in the art after consideration of the present disclosure. Each such portion can also be independently updated or revised without affecting the other portions of the matter that have not been changed. The present invention overcomes many disadvantages associated with conventional bookbinding and manufacturing techniques by using a novel and simple technique of combining interlocking components that comprise sections of a reading material, such as a book. Book users need not transport the entirety of a book when they only desire to focus on one chapter or section of the book. With the present invention, the book user can select the portion(s) of the book she would like to carry with her. Likewise, book publishers need not reprint the entirety of a book when they desire to alter select chapters or sections of the book. With the present invention, the book publisher can select portion(s) of the book that it would like to update, reprint, and sell. Such technique is more advantageous to the publisher, because only certain portions of a, for example, textbook are revised and the cost of printing is limited to those particular portions, such as a chapter. That individual portion can then be sold at a substantially reduced rate than having to reprint and sell the entire textbook. Such high costs of having to re-publish an entire book also prevent many buyers from purchasing new versions because of the lack of substantial difference from older versions of the same textbook. Thus, with the present technique, the publishers can realize higher sales of relevant portions of a textbook because consumers are more apt to purchase those portions of a textbook that are updated rather than an entirely reprinted new textbook. 
         [0013]    Using techniques presented herein and according to the present invention, portions or sections of a book will be individually bound, such as, but not limited to, a perfect binding method. These smaller sections of the whole textbook could be gathered under a book cover. The force used for attraction between the sections and the book cover would be strong enough to keep the entire book block together, when this is the desired use. The sections can also be detached from the book cover and carried separately. A few examples of forces used for attaching the detachable sections include magnetic and mechanical techniques. 
         [0014]    For sake of simplicity, exemplary techniques that may be used in conjunction with the present invention have been presented in various groups of embodiments. Also, for sake of simplicity, the various embodiments are presented with use of a “book” for sake of simplicity. However, the present invention and techniques are equally applicable to other forms of printed and bound and unbound matter, including but not limited to, magazines, directories, newspapers, brochures, photographic albums, reports, and the like. In a non-limiting example of unbound material, techniques disclosed in the present invention may be used to assemble previously unbound materials into a cohesive unit, as well as serving as binding for different sections of the unbound printed matter. One of ordinary skill in the art would be cognizant of these and other type of printed or photographic matter that could be used by the techniques presented in the present disclosure. All such uses are within the scope of the present invention. 
         [0015]    The mechanical embodiments explained in the present invention provide mechanical methods of fastening the sections to the book cover or fastening the book sections to one another. Examples of mechanically-attaching mechanisms include but are not limited to a series of interlocking male and female elements, such as a hook-and-slot mechanism. Many other mechanical binding devices may be used and such other devices are apparent to one having ordinary skill in the art and thereby within the scope of the present invention. 
         [0016]    The sections (or chapters) of a sectional book constructed using the mechanical method can be mechanically-adhered to the book cover or each other, so that each section may be independently separated from the entire book block. Thus, sections of the book can be individually bound, and the book cover and/or section covers can include at least one mechanically-attaching member. 
         [0017]    The present invention has many uses and advantages as would be apparent to one having ordinary skill in the art after consideration of the present disclosure. Exemplary non-limiting uses and advantages over conventional techniques include, but are not limited to: providing a convenient way for users to select which portions of a book to carry with them; providing a reduction in overall weight carried by the user in the forms of books; providing a way for reducing back-related injuries due to carrying heavy books; providing book publishers a way to update portions of the book without need to reprint the entire book; providing book publishers a way to reduce their overall cost of production for new and/or updated versions of books. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0018]      FIG. 1A  shows a perspective view of hook-and-slot mechanism between section members, with at least one flexible hook element along the section member&#39;s spine and at least one complimentary durable slotted rod element along another section member, according to an exemplary embodiment of the present invention. 
           [0019]      FIG. 1B  shows a close-up view of the attachment mechanism in  FIG. 1A . 
           [0020]      FIG. 1C  shows a close-up on a section member&#39;s spine region augmented with a hook-rail and a slot-rail. 
           [0021]      FIG. 1D  shows an end view of  FIG. 1A . 
           [0022]      FIG. 2A  shows an enlarged view of a modular hook-and-slot mechanism, according to an exemplary embodiment of the present invention. 
           [0023]      FIG. 2B  shows an end view of  FIG. 2A . 
           [0024]      FIG. 3A  shows an enlarged view of an alternative hook-and-slot mechanism, according to an exemplary embodiment of the present invention. 
           [0025]      FIG. 3B  shows an end view of  FIG. 3A . 
           [0026]      FIG. 4A  shows an enlarged view of an alternative modular hook-and-slot mechanism, according to an exemplary embodiment of the present invention. 
           [0027]      FIG. 4B  shows an end view of  FIG. 4A . 
           [0028]      FIG. 5A  shows an enlarged view of an alternative hook-and-slot mechanism, according to an exemplary embodiment of the present invention. 
           [0029]      FIG. 5B  shows an end view of  FIG. 5A . 
           [0030]      FIG. 6A  shows an enlarged view of an alternative modular hook-and-slot mechanism, according to an exemplary embodiment of the present invention. 
           [0031]      FIG. 6B  shows an end view of  FIG. 6A . 
           [0032]      FIG. 7A  shows an enlarged view of an alternative hook-and-slot mechanism, according to an exemplary embodiment of the present invention. 
           [0033]      FIG. 7B  shows an end view of  FIG. 7A . 
           [0034]      FIG. 8A  shows a modular hook-and-slot mechanism, according to an exemplary embodiment of the present invention. 
           [0035]      FIG. 8B  shows an end view of  FIG. 8A . 
           [0036]      FIG. 9A  shows a perspective view of sliding hook-and-slot mechanism between section members, with at least one flexible hook element along the section member&#39;s spine and at least one complimentary durable slotted rod element along another section member, according to an exemplary embodiment of the present invention. 
           [0037]      FIG. 9B  shows a close-up view of the attachment mechanism in  FIG. 9A . 
           [0038]      FIG. 9C  shows a close-up on a section member&#39;s spine region augmented with a sliding hook-rail and a slot-rail. 
           [0039]      FIG. 9D  shows an end view of  FIG. 9A . 
           [0040]      FIG. 10A  shows an enlarged view of an alternative modular sliding hook-and-slot mechanism, according to an exemplary embodiment of the present invention. 
           [0041]      FIG. 10B  shows an end view of  FIG. 10A . 
           [0042]      FIG. 11A  shows an enlarged view of an alternative sliding hook-and-slot mechanism, according to an exemplary embodiment of the present invention. 
           [0043]      FIG. 11B  shows an end view of  FIG. 11A . 
           [0044]      FIG. 12A  shows an enlarged view of a modular sliding hook-and-slot mechanism, according to an exemplary embodiment of the present invention. 
           [0045]      FIG. 12B  shows an end view of  FIG. 12A . 
           [0046]      FIG. 13A  shows an enlarged view of an alternative sliding hook-and-slot mechanism with a stopper element, according to an exemplary embodiment of the present invention. 
           [0047]      FIG. 13B  shows an end view of  FIG. 13A . 
           [0048]      FIG. 13C  shows a top view of  FIG. 13A . 
           [0049]      FIG. 14A  shows an enlarged view of an alternative modular sliding hook-and-slot mechanism with a stopper element, according to an exemplary embodiment of the present invention. 
           [0050]      FIG. 14B  shows an end view of  FIG. 14A . 
           [0051]      FIG. 14C  shows a top view of  FIG. 14A . 
           [0052]      FIG. 15A  shows an enlarged view of an alternative sliding hook-and-slot mechanism with a stopper element, according to an exemplary embodiment of the present invention. 
           [0053]      FIG. 15B  shows an end view of  FIG. 15A . 
           [0054]      FIG. 15C  shows a top view of  FIG. 15A . 
           [0055]      FIG. 16A  shows an enlarged view of an alternative modular sliding hook-and-slot mechanism with a stopper element, according to an exemplary embodiment of the present invention. 
           [0056]      FIG. 16B  shows an end view of  FIG. 16A . 
           [0057]      FIG. 16C  shows a top view of  FIG. 16A . 
           [0058]      FIG. 17A  shows a perspective view of a hook-and-slot mechanism between a section member and book cover, with at least one hook-like element along the section member&#39;s spine and at least one complimentary slotted element along the book cover, according to an exemplary embodiment of the present invention. 
           [0059]      FIG. 17B  depicts enlarged view of  FIG. 17A , with a focus on the connecting mechanism between section member and book cover. 
           [0060]      FIG. 17C  shows an end view of  FIG. 17A . 
           [0061]      FIG. 18A  shows a perspective view of an alternative hook-and-slot mechanism between a section member and book cover, with at least one hook-like element along the section member&#39;s spine and at least one complimentary slotted element along the book cover, according to an exemplary embodiment of the present invention. 
           [0062]      FIG. 18B  shows and end view of  FIG. 18A . 
           [0063]      FIG. 19A  shows an enlarged perspective view of a hook-and-slot mechanism with stopper element between a section member and book cover, with at least one hook-like element along the section member&#39;s spine and at least one complimentary slotted element along the book cover, according to an exemplary embodiment of the present invention. 
           [0064]      FIG. 19B  shows an end view of  FIG. 19A . 
           [0065]      FIG. 19C  shows a top view of  FIG. 19A . 
           [0066]      FIG. 20A  shows an enlarged perspective view of an alternative hook-and-slot mechanism with stopper element between a section member and book cover, with at least one hook-like element along the section member&#39;s spine and at least one complimentary slotted element along the book cover, according to an exemplary embodiment of the present invention. 
           [0067]      FIG. 20B  shows an end view of  FIG. 20A . 
           [0068]      FIG. 20C  shows a top view of  FIG. 20A . 
           [0069]      FIG. 21A  shows a perspective view of a hook-and-slot mechanism between a booklet member and book cover, with at least one hook-like element along the booklet member&#39;s spine and at least one complimentary slotted element along the book cover, according to an exemplary embodiment of the present invention. 
           [0070]      FIG. 21B  depicts enlarged view of  FIG. 21A , with a focus on the connecting mechanism between section member and book cover, according to an exemplary embodiment of the present invention. 
           [0071]      FIG. 21C  shows an enlarged perspective view of  FIG. 21A . 
           [0072]      FIG. 21D  shows an enlarged perspective view of  FIG. 21B , with a focus on the attaching elements. 
           [0073]      FIG. 21E  shows an end view of  FIG. 21A . 
           [0074]      FIG. 21F  shows a top view of  FIG. 21A . 
           [0075]      FIG. 22A  shows an enlarged perspective view of an alternative hook-and-slot mechanism between booklet member and book cover, with a focus on the attaching mechanism, according to an exemplary embodiment of the present invention. 
           [0076]      FIG. 22B  shows an end view of  FIG. 22A . 
           [0077]      FIG. 22C  shows a top view of  FIG. 22A . 
           [0078]      FIG. 23A  shows an enlarged perspective view of an alternative sliding hook-and-slot mechanism with stopper element between booklet member and book cover, with a focus on the attaching mechanism, according to an exemplary embodiment of the present invention. 
           [0079]      FIG. 23B  shows an end view of  FIG. 23A . 
           [0080]      FIG. 23C  shows a top view of  FIG. 23A . 
           [0081]      FIG. 24A  shows an enlarged perspective view of an alternative sliding hook-and-slot mechanism with stopper element between booklet member and book cover, with a focus on the attaching elements, according to an exemplary embodiment of the present invention. 
           [0082]      FIG. 24B  shows an end view of  FIG. 24A . 
           [0083]      FIG. 24C  shows a top view of  FIG. 24A . 
           [0084]      FIG. 25A  shows a perspective view of a hook-and-slot mechanism between spiral- or stitch-bound members, with at least one hook-like element along the stitch-bound member&#39;s spine region and at least one complimentary slotted element along another stitch-bound member&#39;s spine region, according to an exemplary embodiment of the present invention. 
           [0085]      FIG. 25B  depicts enlarged view of  FIG. 25A , with a focus on the connecting mechanism between section member and book cover. 
           [0086]      FIG. 25C  shows an enlarged perspective view of  FIG. 25A , with a focus on the attaching elements. 
           [0087]      FIG. 25D  shows an end view of  FIG. 25A . 
           [0088]      FIG. 25E  shows a top view of  FIG. 25A . 
           [0089]      FIG. 26A  shows an enlarged view of an alternative hook-and-slot mechanism between stitch-bound members, with a focus on the attaching elements, according to an exemplary embodiment of the present invention. 
           [0090]      FIG. 26B  shows an end view of  FIG. 26A . 
           [0091]      FIG. 26C  shows a top view of  FIG. 26A . 
           [0092]      FIG. 27A  shows an enlarged view of an alternative sliding hook-and-slot mechanism between stitch-bound members, with a focus on the attaching elements, according to an exemplary embodiment of the present invention. 
           [0093]      FIG. 27B  shows an end view of  FIG. 27A . 
           [0094]      FIG. 27C  shows a top view of  FIG. 27A . 
           [0095]      FIG. 28A  shows an enlarged view of an alternative sliding hook-and-slot mechanism with stopper element between stitch-bound members, with a focus on the attaching elements, according to an exemplary embodiment of the present invention. 
           [0096]      FIG. 28B  shows an end view of  FIG. 28A . 
           [0097]      FIG. 28C  shows a top view of  FIG. 28A . 
           [0098]      FIG. 29A  shows a perspective view of a hook-and-slot mechanism between unbound print members, with at least one hook-like element along a set of unbound print member&#39;s spine region and at least one complimentary slotted element along another unbound print member&#39;s spine region, according to an exemplary embodiment of the present invention. 
           [0099]      FIG. 29B  depicts enlarged view of  FIG. 29A , with a focus on the connecting mechanism between section member and book cover, according to an exemplary embodiment of the present invention. 
           [0100]      FIG. 29C  shows an enlarged perspective view of  FIG. 29A , with a focus on the attaching elements. 
           [0101]      FIG. 29D  shows an end view of  FIG. 29A . 
           [0102]      FIG. 30A  shows an enlarged view of an alternative hook-and-slot mechanism between unbound print members, with a focus on the attaching elements, according to an exemplary embodiment of the present invention. 
           [0103]      FIG. 30B  shows an end view of  FIG. 30A . 
           [0104]      FIG. 31A  shows an enlarged perspective view of an alternative sliding hook-and-slot mechanism between unbound print members, with a focus on the attaching mechanism, according to an exemplary embodiment of the present invention. 
           [0105]      FIG. 31B  shows an enlarged view of an alternative hook-and-slot mechanism between unbound print members, with a focus on the attaching elements. In this embodiment, the hooks are facing an alternative direction. 
           [0106]      FIG. 31C  shows an end view of  FIG. 31A . 
           [0107]      FIG. 32A  shows an enlarged view of an alternative sliding hook-and-slot mechanism with stopper element between unbound print members, with a focus on the attaching elements, according to an exemplary embodiment of the present invention. 
           [0108]      FIG. 32B  shows an end view of  FIG. 32A . 
           [0109]      FIG. 32B  shows a top view of  FIG. 32A . 
           [0110]      FIG. 33A  shows a perspective view of a hook-and-slot mechanism with tension hinge between unbound print members, with at least one hook-like element along a set of unbound print member&#39;s spine region and at least one complimentary slotted element along another unbound print member&#39;s spine region, according to an exemplary embodiment of the present invention. 
           [0111]      FIG. 33B  shows an end view of  FIG. 33A . 
           [0112]      FIG. 33C  shows an end view of  FIG. 33A  wherein the attachment member is hinged to an open position. 
           [0113]      FIG. 34A  shows an enlarged view of an alternative hook-and-slot mechanism with tension hinge between unbound print members, with a focus on the attaching elements, according to an exemplary embodiment of the present invention. 
           [0114]      FIG. 34B  shows an end view of  FIG. 34A . 
           [0115]      FIG. 34C  shows an end view of  FIG. 34A  wherein the attachment member is hinged to an open position. 
           [0116]      FIG. 35A  shows an enlarged view of an alternative sliding hook-and-slot mechanism with tension hinge between unbound print members, with a focus on the attaching elements, according to an exemplary embodiment of the present invention. 
           [0117]      FIG. 35B  shows an end view of  FIG. 35A . 
           [0118]      FIG. 35C  shows an end view of  FIG. 35A  wherein the attachment member is hinged to an open position. 
           [0119]      FIG. 36A  shows an enlarged view of an alternative sliding hook-and-slot mechanism with stopper element and tension hinge between unbound print members, with a focus on the attaching elements, according to an exemplary embodiment of the present invention. 
           [0120]      FIG. 36B  shows an end view of  FIG. 36A . 
           [0121]      FIG. 36C  shows an end view of  FIG. 36A  wherein the attachment member is hinged to an open position. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0122]    As disclosed in the present description and accompanying drawings, the present invention provides for manufacture, sale, and use of a print and/or paper matter incorporating reversibly detachable sections. 
         [0123]    To assist in the consideration of the present disclosure and accompanying drawings, the following labels have been used and are generally presented here and described in more detail below:
         10 A: Book cover     11 A: Cover of book cover     12 A: Alternative cover of book cover     15 A: Spine region of book cover     30  A, B: Section member     31  A, B: Cover of section member     32  A, B: Alternative cover of section member     35  A, B: Spine region of section member     40 A: Booklet member     41  A, B: Cover of booklet member     42  A, B: Alternative cover of booklet member     45  A, B: Spine region of booklet member     46  A, B: Cylindrical rod element     47  A, B: Complimentary capturing element for cylindrical rod element     48  A, B: Attaching hinge between cylindrical rod element and attaching member     50 A, B: Stitch-bound member     51  A, B: Cover of stitch-bound member     52  A, B: Alternative cover of stitch-bound print member     55  A, B: Spine region of stitch-bound member     56  A, B: Cylindrical rod element     57  A, B: Complimentary capturing element for cylindrical rod element     58  A, B: Stitches of stitch-bound members     59  A, B: Attaching hinge between cylindrical rod element and attaching member     60 A, B: Unbound print member     61  A, B: Cover of unbound print member     62  A, B: Alternative cover of unbound print member     65  A, B: Spine region of unbound print member     70 A, B: Tension hinge     71  A, B: Wing of tension hinge     300  A, B: Slotted-rod rail member     301  A, B: Spine-facing support leg for slotted-rod rail member     303  A, B: Protruding, rod-like element of slotted rod rail member     304  A, B: Slots along slotted rod rail member     306  A, B: Cylindrical end element of slotted rod rail member     400  A, B: Hooked rail member     401  A, B: Spine-facing support leg for hooked rail member     404  A, B: Hooks (upward facing) along hooked rail member     310  A, B: Modular slotted rod rail member     311  A, B: Spine-facing support leg for slotted rod rail member     313  A, B: Protruding, rod-like element of modular slotted rod rail member     314  A, B: Slots along modular slotted rod rail member     315  A, B: Breaks along modular slotted rail for reattaching and/or detaching part of rail from the whole     316  A, B: Cylindrical end element of modular slotted rod rail member     410  A, B: Modular hooked rail member     411  A, B: Spine-facing support leg for modular hooked rail member     414  A, B: Hooks (upward facing) along modular hooked rail member     415  A, B: Breaks along modular hooked rail for reattaching and/or detaching part of rail from the whole     320  A, B: Alternative slotted rod rail member     321  A, B: Spine-facing support leg for alternative slotted rod rail member     322  A, B: Cover-facing support leg for alternative slotted rod rail member     323  A, B: Protruding, rod-like element of alternative slotted rod rail member     324  A, B: Slots along alternative slotted rod rail member     326  A, B: Cylindrical end element of alternative slotted rod rail member     420  A, B: Hooked rail member     421  A, B: Support leg for alternative hooked rail member     422  A, B: Cover-facing support leg for alternative hooked rail member     424  A, B: Hooks (upward facing) along alternative hooked rail member     330  A, B: Alternative modular slotted rod rail member     331  A, B: Spine-facing support leg for alternative modular slotted rod rail member     321  A, B: Cover-facing support leg for alternative modular slotted rod rail member     333  A, B: Protruding, rod-like element of alternative modular slotted rod rail member     334  A, B: Slots along alternative modular slotted rod rail member     335  A, B: Breaks along alternative modular slotted rail for reattaching and/or detaching part of rail from the whole     336  A, B: Cylindrical end element of alternative modular slotted rod rail member     430  A, B: Alternative modular hooked rail member     431  A, B: Spine-facing support leg for modular hooked rail member     422  A, B: Cover-facing support leg for alternative modular hooked rail member     434  A, B: Hooks (upward facing) along alternative modular hooked rail member     435  A, B: Breaks along modular hooked rail for reattaching and/or detaching part of rail from the whole     340  A, B: Alternative slotted rod rail member     341  A, B: Spine-facing support leg for alternative slotted rod rail member     343  A, B: Protruding, rod-like element of slotted rod rail member     344  A, B: Slots along alternative slotted rod rail member     346  A, B: Cylindrical end element of alternative slotted rod rail member     440  A, B: Alternative hooked rail member     441  A, B: Spine-facing support leg for alternative hooked rail member     444  A, B: Hooks (downward facing) along hooked rail member     340  A, B: Alternative modular slotted rod rail member     341  A, B: Spine-facing support leg for alternative modular slotted rod rail member     353  A, B: Protruding, rod-like element of alternative modular slotted rod rail member     354  A, B: Slots along alternative modular slotted rod rail member     355  A, B: Breaks along alternative modular slotted rail for reattaching and/or detaching part of rail from the whole     356  A, B: Cylindrical end element of alternative modular slotted rod rail member     450  A, B: Alternative modular hooked rail member     451  A, B: Spine-facing support leg for alternative modular hooked rail member     454  A, B: Hooks (downward facing) along alternative modular hooked rail member     455  A, B: Breaks along alternative modular hooked rail for reattaching and/or detaching part of rail from the whole     360  A, B: Alternative slotted rod rail member     361  A, B: Spine-facing support leg for alternative slotted rod rail member     362  A, B: Cover-facing support leg for alternative slotted rod rail member     363  A, B: Protruding, rod-like element of alternative slotted rod rail member     364  A, B: Slots along alternative slotted rod rail member     366  A, B: Cylindrical end element of alternative slotted rod rail member     460  A, B: Hooked rail member     461  A, B: Support leg for alternative hooked rail member     462  A, B: Cover-facing support leg for alternative hooked rail member     464  A, B: Hooks (downward facing) along alternative hooked rail member     370  A, B: Alternative modular slotted rod rail member     371  A, B: Spine-facing support leg for alternative modular slotted rod rail member     371  A, B: Cover-facing support leg for alternative modular slotted rod rail member     373  A, B: Protruding, rod-like element of alternative modular slotted rod rail member     374  A, B: Slots along alternative modular slotted rod rail member     375  A, B: Breaks along alternative modular slotted rail for reattaching and/or detaching part of rail from the whole     376  A, B: Cylindrical end element of alternative modular slotted rod rail member     470  A, B: Alternative modular hooked rail member     471  A, B: Spine-facing support leg for modular hooked rail member     472  A, B: Cover-facing support leg for alternative modular hooked rail member     474  A, B: Hooks (downward facing) along alternative modular hooked rail member     475  A, B: Breaks along modular hooked rail for reattaching and/or detaching part of rail from the whole     380  A, B: Alternative slotted rod rail member     381  A, B: Spine-facing support leg for alternative slotted rod rail member     383  A, B: Protruding, rod-like element of slotted rod rail member     384  A, B: Slots along alternative slotted rod rail member     386  A, B: Cylindrical end element of alternative slotted rod rail member     480  A, B: Alternative hooked rail member     481  A, B: Spine-facing support leg for alternative hooked rail member     484  A, B: Hooks (extended and downward facing) along hooked rail member     390  A, B: Alternative modular slotted rod rail member     391  A, B: Spine-facing support leg for alternative modular slotted rod rail member     393  A, B: Protruding, rod-like element of alternative modular slotted rod rail member     394  A, B: Slots along alternative modular slotted rod rail member     395  A, B: Breaks along alternative modular slotted rail for reattaching and/or detaching part of rail from the whole     396  A, B: Cylindrical end element of alternative modular slotted rod rail member     490  A, B: Alternative modular hooked rail member     491  A, B: Spine-facing support leg for alternative modular hooked rail member     494  A, B: Hooks (extended and downward facing) along alternative modular hooked rail member     495  A, B: Breaks along alternative modular hooked rail for reattaching and/or detaching part of rail from the whole     500  A, B: Alternative slotted rod rail member     501  A, B: Spine-facing support leg for alternative slotted rod rail member     502  A, B: Cover-facing support leg for alternative slotted rod rail member     503  A, B: Protruding, rod-like element of alternative slotted rod rail member     504  A, B: Slots along alternative slotted rod rail member     506  A, B: Cylindrical end element of alternative slotted rod rail member     600  A, B: Hooked rail member     601  A, B: Support leg for alternative hooked rail member     602  A, B: Cover-facing support leg for alternative hooked rail member     604  A, B: Hooks (extended and downward facing) along alternative hooked rail member     510  A, B: Alternative modular slotted rod rail member     511  A, B: Spine-facing support leg for alternative modular slotted rod rail member     511  A, B: Cover-facing support leg for alternative modular slotted rod rail member     513  A, B: Protruding, rod-like element of alternative modular slotted rod rail member     514  A, B: Slots along alternative modular slotted rod rail member     515  A, B: Breaks along alternative modular slotted rail for reattaching and/or detaching part of rail from the whole     516  A, B: Cylindrical end element of alternative modular slotted rod rail member     610  A, B: Alternative modular hooked rail member     611  A, B: Spine-facing support leg for modular hooked rail member     612  A, B: Cover-facing support leg for alternative modular hooked rail member     614  A, B: Hooks (extended and downward facing) along alternative modular hooked rail member     615  A, B: Breaks along alternative modular hooked rail for reattaching and/or detaching part of rail from the whole     520  A, B: Alternative slotted rod rail member     521  A, B: Spine-facing support leg for alternative slotted rod rail member     523  A, B: Protruding, rod-like element of slotted rod rail member     524  A, B: Slots along alternative slotted rod rail member     526  A, B: Cylindrical end element of alternative slotted rod rail member     528  A, B: Ball-like element along cylindrical end element of alternative slotted rod rail member     620  A, B: Alternative hooked rail member     621  A, B: Spine-facing support leg for alternative hooked rail member     624  A, B: Hooks (extended downward facing) along hooked rail member     628  A, B: Tension hook element along hooked rail member     530  A, B: Alternative modular slotted rod rail member     531  A, B: Spine-facing support leg for alternative modular slotted rod rail member     533  A, B: Protruding, rod-like element of alternative modular slotted rod rail member     534  A, B: Slots along alternative modular slotted rod rail member     535  A, B: Breaks along alternative modular slotted rail for reattaching and/or detaching part of rail from the whole     536  A, B: Cylindrical end element of alternative modular slotted rod rail member     538  A, B: Ball-like element along cylindrical end element of alternative slotted rod rail member     630  A, B: Alternative modular hooked rail member     631  A, B: Spine-facing support leg for alternative modular hooked rail member     634  A, B: Hooks (extended downward facing) along alternative modular hooked rail member     635  A, B: Breaks along alternative modular hooked rail for reattaching and/or detaching part of rail from the whole     638  A, B: Tension hook element along hooked rail member     540  A, B: Alternative slotted rod rail member     541  A, B: Spine-facing support leg for alternative slotted rod rail member     542  A, B: Cover-facing support leg for alternative slotted rod rail member     543  A, B: Protruding, rod-like element of alternative slotted rod rail member     544  A, B: Slots along alternative slotted rod rail member     546  A, B: Cylindrical end element of alternative slotted rod rail member     548  A, B: Ball-like element along cylindrical end element of alternative slotted rod rail member     640  A, B: Hooked rail member     641  A, B: Support leg for alternative hooked rail member     642  A, B: Cover-facing support leg for alternative hooked rail member     644  A, B: Hooks (extended and downward facing) along alternative hooked rail member     648  A, B: Tension hook element along hooked rail member     550  A, B: Alternative modular slotted rod rail member     551  A, B: Spine-facing support leg for alternative modular slotted rod rail member     552  A, B: Cover-facing support leg for alternative modular slotted rod rail member     553  A, B: Protruding, rod-like element of alternative modular slotted rod rail member     554  A, B: Slots along alternative modular slotted rod rail member     555  A, B: Breaks along alternative modular slotted rail for reattaching and/or detaching part of rail from the whole     556  A, B: Cylindrical end element of alternative modular slotted rod rail member     558  A, B: Ball-like element along cylindrical end element of alternative slotted rod rail member     650  A, B: Alternative modular hooked rail member     651  A, B: Spine-facing support leg for modular hooked rail member     652  A, B: Cover-facing support leg for alternative modular hooked rail member     654  A, B: Hooks (extended and downward facing) along alternative modular hooked rail member     655  A, B: Breaks along alternative modular hooked rail for reattaching and/or detaching part of rail from the whole     658  A, B: Tension hook element along hooked rail member     560  A, B: Alternative slotted rod rail member     563  A, B: Protruding, rod-like element of alternative slotted rod rail member     564  A, B: Slots along alternative slotted rod rail member     566  A, B: Cylindrical end element of alternative slotted rod rail member     660  A, B: Hooked rail member     661  A, B: Support leg for alternative hooked rail member     664  A, B: Hooks along alternative hooked rail member     570  A, B: Alternative slotted rod rail member     571  A, B: Support leg for alternative slotted rod rail member     573  A, B: Protruding, rod-like element of alternative slotted rod rail member     574  A, B: Slots along alternative slotted rod rail member     576  A, B: Cylindrical end element of alternative slotted rod rail member     670  A, B: Hooked rail member     674  A, B: Hooks along alternative hooked rail member     580  A, B: Alternative slotted rod rail member     583  A, B: Protruding, rod-like element of alternative slotted rod rail member     584  A, B: Slots along alternative slotted rod rail member     586  A, B: Cylindrical end element of alternative slotted rod rail member     588  A, B: Ball-like element along cylindrical end element of alternative slotted rod rail member     680  A, B: Hooked rail member     681  A, B: Support leg for alternative hooked rail member     684  A, B: Hooks along alternative hooked rail member     688  A, B: Tension hook element along hooked rail member     590  A, B: Alternative slotted rod rail member     591  A, B: Support leg for alternative slotted rod rail member     593  A, B: Protruding, rod-like element of alternative slotted rod rail member     594  A, B: Slots along alternative slotted rod rail member     596  A, B: Cylindrical end element of alternative slotted rod rail member     598  A, B: Ball-like element along cylindrical end element of alternative slotted rod rail member     690  A, B: Hooked rail member     694  A, B: Hooks along alternative hooked rail member     698  A, B: Tension hook element along hooked rail member     700  A, B: Alternative slotted rod rail member     703  A, B: Protruding, rod-like element of alternative slotted rod rail member     704  A, B: Slots along alternative slotted rod rail member     706  A, B: Cylindrical end element of alternative slotted rod rail member     800  A, B: Hooked rail member     801  A, B: Support leg for alternative hooked rail member     804  A, B: Hooks along alternative hooked rail member     710  A, B: Alternative slotted rod rail member     711  A, B: Support leg for alternative slotted rod rail member     713  A, B: Protruding, rod-like element of alternative slotted rod rail member     714  A, B: Slots along alternative slotted rod rail member     716  A, B: Cylindrical end element of alternative slotted rod rail member     810  A, B: Hooked rail member     814  A, B: Hooks along alternative hooked rail member     810  A, B: Alternative slotted rod rail member     723  A, B: Protruding, rod-like element of alternative slotted rod rail member     724  A, B: Slots along alternative slotted rod rail member     726  A, B: Cylindrical end element of alternative slotted rod rail member     728  A, B: Ball-like element along cylindrical end element of alternative slotted rod rail member     820  A, B: Hooked rail member     821  A, B: Support leg for alternative hooked rail member     824  A, B: Hooks along alternative hooked rail member     828  A, B: Tension hook element along hooked rail member     730  A, B: Alternative slotted rod rail member     731  A, B: Support leg for alternative slotted rod rail member     733  A, B: Protruding, rod-like element of alternative slotted rod rail member     734  A, B: Slots along alternative slotted rod rail member     736  A, B: Cylindrical end element of alternative slotted rod rail member     738  A, B: Ball-like element along cylindrical end element of alternative slotted rod rail member     830  A, B: Hooked rail member     834  A, B: Hooks along alternative hooked rail member     838  A, B: Tension hook element along hooked rail member     742  A, B: Spine-facing support leg for slotted-rod rail member     743  A, B: Protruding, rod-like element of slotted rod rail member     744  A, B: Slots along slotted rod rail member     746  A, B: Cylindrical end element of slotted rod rail member     841  A, B: Spine-facing support leg for three-walled sleeve     842  A, B: Spine-facing support leg for hooked rail member     844  A, B: Hooks (upward facing) along hooked rail member     752  A, B: Spine-facing support leg for slotted-rod rail member     75  A, B: Protruding, rod-like element of slotted rod rail member     754  A, B: Slots along slotted rod rail member     756  A, B: Cylindrical end element of slotted rod rail member     851  A, B: Spine-facing support leg for three-walled sleeve     852  A, B: Spine-facing support leg for hooked rail member     854  A, B: Hooks (downward facing) along hooked rail member     762  A, B: Spine-facing support leg for slotted-rod rail member     763  A, B: Protruding, rod-like element of slotted rod rail member     764  A, B: Slots along slotted rod rail member     766  A, B: Cylindrical end element of slotted rod rail member     861  A, B: Spine-facing support leg for three-walled sleeve     862  A, B: Spine-facing support leg for hooked rail member     864  A, B: Hooks (extended and downward facing) along hooked rail member     772  A, B: Spine-facing support leg for slotted-rod rail member     773  A, B: Protruding, rod-like element of slotted rod rail member     774  A, B: Slots along slotted rod rail member     776  A, B: Cylindrical end element of slotted rod rail member     778  A, B: Ball-like element along cylindrical end element of alternative slotted rod rail member     871  A, B: Spine-facing support leg for three-walled sleeve     872  A, B: Spine-facing support leg for hooked rail member     874  A, B: Hooks (extended and downward facing) along hooked rail member     878  A, B: Tension hook element along hooked rail member     782  A, B: Spine-facing support leg for slotted-rod rail member     783  A, B: Protruding, rod-like element of slotted rod rail member     784  A, B: Slots along slotted rod rail member     786  A, B: Cylindrical end element of slotted rod rail member     881  A, B: Spine-facing support leg for tension sleeve     882  A, B: Spine-facing support leg for hooked rail member     884  A, B: Hooks (upward facing) along hooked rail member     792  A, B: Spine-facing support leg for slotted-rod rail member     793  A, B: Protruding, rod-like element of slotted rod rail member     794  A, B: Slots along slotted rod rail member     796  A, B: Cylindrical end element of slotted rod rail member     891  A, B: Spine-facing support leg for tension sleeve     892  A, B: Spine-facing support leg for hooked rail member     894  A, B: Hooks (downward facing) along hooked rail member     902  A, B: Spine-facing support leg for slotted-rod rail member     903  A, B: Protruding, rod-like element of slotted rod rail member     904  A, B: Slots along slotted rod rail member     906  A, B: Cylindrical end element of slotted rod rail member     1001  A, B: Spine-facing support leg for tension sleeve     1002  A, B: Spine-facing support leg for hooked rail member     1004  A, B: Hooks (extended and downward facing) along hooked rail member     912  A, B: Spine-facing support leg for slotted-rod rail member     913  A, B: Protruding, rod-like element of slotted rod rail member     914  A, B: Slots along slotted rod rail member     916  A, B: Cylindrical end element of slotted rod rail member     918  A, B: Ball-like element along cylindrical end element of alternative slotted rod rail member     1011  A, B: Spine-facing support leg for tension sleeve     1012  A, B: Spine-facing support leg for hooked rail member     1014  A, B: Hooks (extended and downward facing) along hooked rail member     1018  A, B: Tension hook element along hooked rail member     922  A, B: Spine-facing support leg for slotted-rod rail member     923  A, B: Protruding, rod-like element of slotted rod rail member     924  A, B: Slots along slotted rod rail member     926  A, B: Cylindrical end element of slotted rod rail member     1021  A, B: Spine-facing support leg for hinged tension sleeve     1022  A, B: Spine-facing support leg for hooked rail member     1024  A, B: Hooks (upward facing) along hooked rail member     922  A, B: Spine-facing support leg for slotted-rod rail member     933  A, B: Protruding, rod-like element of slotted rod rail member     934  A, B: Slots along slotted rod rail member     936  A, B: Cylindrical end element of slotted rod rail member     1031  A, B: Spine-facing support leg for hinged tension sleeve     1032  A, B: Spine-facing support leg for hooked rail member     1034  A, B: Hooks (downward facing) along hooked rail member     942  A, B: Spine-facing support leg for slotted-rod rail member     943  A, B: Protruding, rod-like element of slotted rod rail member     944  A, B: Slots along slotted rod rail member     946  A, B: Cylindrical end element of slotted rod rail member     1041  A, B: Spine-facing support leg for hinged tension sleeve     1042  A, B: Spine-facing support leg for hooked rail member     1044  A, B: Hooks (extended and downward facing) along hooked rail member     952  A, B: Spine-facing support leg for slotted-rod rail member     953  A, B: Protruding, rod-like element of slotted rod rail member     954  A, B: Slots along slotted rod rail member     956  A, B: Cylindrical end element of slotted rod rail member     958  A, B: Ball-like element along cylindrical end element of alternative slotted rod rail member     1051  A, B: Spine-facing support leg for hinged tension sleeve     1052  A, B: Spine-facing support leg for hooked rail member     1054  A, B: Hooks (extended and downward facing) along hooked rail member     1058  A, B: Tension hook element along hooked rail member       
 
         [0475]    The following is a non-limiting list of exemplary mechanical embodiments of the present invention. For the purpose of this disclosure, the term “module member” includes section member(s), booklet member(s), stitch-bound member(s), and unbound print member(s). Section members  30 A and  30 B can be attached to the book cover  10  through adjoining members. Section members  30 A and  30 B can also be attached to each other. For sake of simplicity, many of the drawings present a combination of section members, e.g.,  30 A and  30 B, while only showing section member  30 A. It is to be understood in these drawings that a section member  30 B may be attached to section member  30 A, similar to what is shown and described in  FIGS. 1A-1D . Additionally, it is to be understood that the components of section member  30 B, such as a spine region  35 B of section member  30 B, are also present as a complement to those of section member  30 A. Further, the description of many of the drawings discusses, for instance, a slot element of section member  30 B corresponding to a hook element of section member  30 A. Such a slot element is understood to act similar to a slot element shown of section member  30 A in receiving a hook element. Additionally, in order to show commonalities between drawings, many of the drawing label features are not specifically discussed with respect to the drawing. These features are commonly numbered as they represent an equivalent feature. One having ordinary skill in the art would recognize and understand each embodiment shown and presented in view of the description presented for other embodiments. Booklet member  40 A can be attached to the book cover  10  through adjoining members or any other member with complimentary hook-and-slot elements. Stitch-bound members  50 A and  50 B can be attached to each other through adjoining members or any other member with complimentary hook and/or slot elements. Unbound print members  60 A and  60 B can be attached to each other through adjoining members or any other member with complimentary hook and/or slot elements. 
         [0476]    Combinations of attaching the section member(s)  30 A and/or  30 B, booklet member(s)  40 A, stitch-bound member(s)  50 A and/or  50 B, and unbound print member(s)  60 A and/or  60 B to each other and/or to cover  10  by adjoining members include but are not limited to (i) hook-and-slot, (ii) slot-and-hook, (iii) sliding hook-and-slot, (iv) sliding slot-and-hook, (v) interlocking sliding hook-and-slot, and (vi) interlocking slot-and-hook. 
         [0477]    The attaching members of these embodiments are made of flexible and durable materials (such as plastic and/or rubber and/or metal), which would be affixed to the book cover and/or section member(s) and/or booklet member(s) and/or stitch member(s) and/or unbound print member(s). These members may be affixed in a variety of permanent or non-permanent ways, such as gluing, taping, sewing, clasping, crimping, or interlocking. Thus, the attaching mechanism may be reversible or irreversible, depending on the desire of the manufacturer and/or user. The most likely method for affixing members described in embodiments attaching section member(s)  30 A and/or  30 B to each other or to book cover  10  is gluing. On the other hand, the embodiments section member(s)  30 A and/or  30 B, booklet member  40 A, stitch-bound member(s)  50 A and/or  50 B, and unbound print member(s)  60 A and/or  60 B to each other and/or to cover  10  may require additional strength by employing additional clamping and/or sewing and/or crimping. The composition base of the adhesive used to affix attaching members to the book cover  10  and/or section member(s)  30 A and/or  30 B and/or booklet member  40 A, and/or stitch bound member(s)  50 A and/or  50 B, and unbound print member(s)  60 A and/or  60 B may include but is not limited to a polyvinyl acetate (PVA), Polyurethane (PUR), plastic resin, ground animal, ground hide, liquid hide, or caoutchouc (raw rubber). 
         [0478]    Attachment members described in the present invention may be manufactured for a specific width and/or height of print matter. It is envisioned, however, that while most attachment members can accommodate a variety of widths of print matter, the height of the attachment member may be predetermined or created for modularity after initial fabrication. 
         [0479]      FIGS. 1A ,  1 B,  1 C, and  1 D depict a hook-and-slot mechanism between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a support leg  401 A containing upward-facing hook elements  404 A along the exterior of the spine region  35 A of the section member  30 A. A complimentary slot element located along the support leg  301 B contains a protruding curved element  303 B containing slot elements  304 B along the exterior of the spine region  35 B of the section member  30 B. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  303 B into the complimentary unique hook elements  404 A until properly aligned to allow slot elements  304 B to mate with the hook elements  404 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  400 A and slotted rail  300 B join together. 
         [0480]      FIGS. 2A and 2B  depict a modular hook-and-slot mechanism between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a modular support leg  411 A containing upward-facing hook elements  414 A along the exterior of the spine region  35 A of the section member  30 A. A complimentary slot element located along the modular support leg  311 B contains a protruding curved element  313 B with slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  314 A. The modular support legs  311 A,B, and  411 A,B, are also composed of breaks  315 A,B, and  415 A,B that allow portions of the support legs for slotted rail  310 A,B, and  410 A,B to be reattached and or detached from the whole. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  313 B into the complimentary unique hook elements  414 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  414 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  410 A and slotted rail of section member  30 B join together. 
         [0481]      FIGS. 3A and 3B  depict an additional hook-and-slot mechanism between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a support leg  421 A containing upward-facing hook elements  404 A along the exterior of the spine region  35 A of the section member  30 A. Hooked rail element  420 A also contains another support leg  422 A along the cover  32 A of section member  30 A. A complimentary slot element located along the support leg  321 B contains a protruding curved element  323 B containing slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  324 A. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  323 B into the complimentary unique hook elements  424 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  424 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  420 A and slotted rail of section member  30 B join together. 
         [0482]      FIGS. 4A and 4B  depict a different modular hook-and-slot mechanism between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a modular support leg  431 A containing upward-facing hook elements  434 A along the exterior of the spine region  35 A of the section member  30 A. Hooked rail element  430 A also contains another modular support leg  432 A along the cover  32 A of section member  30 A. A complimentary slot element located along the modular support leg  331 B contains a protruding curved element  333 B with slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  334 A. The modular support legs  331 A,B,  332  A,B,  431 A,B, and  432  A,B are also composed of breaks  335 A,B, and  435 A,B that allow portions of the support legs for slotted rail  330 A,B, and  430 A,B to be reattached and or detached from the whole. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  333 B into the complimentary unique hook elements  434 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  434 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  430 A and slotted rail of section member  30 B join together. 
         [0483]      FIGS. 5A and 5B  depict an alternative hook-and-slot mechanism between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a support leg  441 A containing downward-facing hook elements  444 A along the exterior of the spine region  35 A of the section member  30 A. A complimentary slot element located along the support leg  341 B contains a protruding curved element  343 B containing slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  344 A. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  343 B into the complimentary unique hook elements  444 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  444 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  440 A and slotted rail of section member  30 B join together. 
         [0484]      FIGS. 6A and 6B  depict another modular hook-and-slot mechanism between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a modular support leg  451 A containing downward-facing hook elements  454 A along the exterior of the spine region  35 A of the section member  30 A. A complimentary slot element located along the modular support leg  351 B contains a protruding curved element  353 B with slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  354 A. The modular support legs  351 A,B, and  451 A,B, are also composed of breaks  355 A,B, and  455 A,B that allow portions of the support legs for slotted rail  350 A,B, and  450 A,B to be reattached and or detached from the whole. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  353 B into the complimentary unique hook elements  454 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  454 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  450 A and slotted rail of section member  30 B join together. 
         [0485]      FIGS. 7A and 7B  depict a different hook-and-slot mechanism between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a support leg  461 A containing downward-facing hook elements  464 A along the exterior of the spine region  35 A of the section member  30 A. Hooked rail element  460 A also contains another support leg  462 A along the cover  32 A of section member  30 A. A complimentary slot element located along the support leg  361 B contains a protruding curved element  363 B containing slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  364 A. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  363 B into the complimentary unique hook elements  464 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  464 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  460 A and slotted rail of section member  30 B join together. 
         [0486]      FIGS. 8A and 8B  depict yet another modular hook-and-slot mechanism between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a modular support leg  471 A containing downward-facing hook elements  474 A along the exterior of the spine region  35 A of the section member  30 A. Hooked rail element  470 A also contains another modular support leg  472 A along the cover  32 A of section member  30 A. A complimentary slot element located along the modular support leg  371 B contains a protruding curved element  373 B with slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  374 A. The modular support legs  371 A,B,  372  A,B,  471 A,B, and  472  A,B are also composed of breaks  375 A,B, and  475 A,B that allow portions of the support legs for slotted rail  370 A,B, and  470 A,B to be reattached and or detached from the whole. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  373 B into the complimentary unique hook elements  474 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  474 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  470 A and slotted rail of section member  30 B join together. 
         [0487]      FIGS. 9A ,  9 B,  9 C, and  9 D depict a sliding hook-and-slot mechanism between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this iteration, both the hooked and slotted rails have an extended support leg attached to the spine region of the section member. The hooks are also open to an alternative direction in this iteration of the present invention. The hooks also maintain an alternative geometry with a much narrower entrance, creating an easier attachment by sliding the slotted-rail through the hooked-rails cylindrical-like channel down the center of its hooks. In this embodiment, there is a support leg  481 A containing extended and downward-facing hook elements  484 A along the exterior of the spine region  35 A of the section member  30 A. The geometry of these extended hook elements  484 A make an even more defined channel through which the slotted rail  380 B can slide through, aiding in the ease of use and zip-like attachment technique. A complimentary slot element located along the support leg  381 B contains a protruding curved element  383 B containing slot elements  384 B along the exterior of the spine region  35 B of the section member  30 B. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  383 B into the complimentary unique hook elements  484 A until properly aligned to allow slot elements  384 B to mate with the hook elements  484 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  480 A and slotted rail  380 B join together. 
         [0488]      FIGS. 10A and 10B  depict a modular sliding hook-and-slot mechanism between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this iteration, both the hooked and slotted rails have an extended support leg attached to the spine region of the section member. The hooks are also open to an alternative direction in this iteration of the present invention. The hooks also maintain an alternative geometry with a much narrower entrance, creating an easier attachment by sliding the slotted-rail through the hooked-rails cylindrical-like channel down the center of its hooks. In this embodiment, there is a modular support leg  491 A containing extended and downward-facing hook elements  494 A along the exterior of the spine region  35 A of the section member  30 A. The geometry of these extended hook elements  494 A make an even more defined channel through which the slotted rail of section member  30 B can slide through, aiding in the ease of use and zip-like attachment technique. A complimentary slot element located along the modular support leg  391 B contains a protruding curved element  393 B with slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  394 A. The modular support legs  391 A,B, and  491 A,B, are also composed of breaks  395 A,B, and  495 A,B that allow portions of the support legs for slotted rail  390 A,B, and  490 A,B to be reattached and or detached from the whole. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  393 B into the complimentary unique hook elements  494 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  494 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  490 A and slotted rail of section member  30 B join together. 
         [0489]      FIGS. 11A and 11B  depict an additional sliding hook-and-slot mechanism between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a support leg  601 A containing extended and downward-facing hook elements  604 A along the exterior of the spine region  35 A of the section member  30 A. Hooked rail element  600 A also contains another support leg  602 A along the cover  32 A of section member  30 A. The geometry of these extended hook elements  604 A make an even more defined channel through which the slotted rail of section member  30 B can slide through, aiding in the ease of use and zip-like attachment technique. A complimentary slot element located along the support leg  501 B contains a protruding curved element  503 B containing slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  504 A. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  503 B into the complimentary unique hook elements  604 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  604 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  600 A and slotted rail of section member  30 B join together. 
         [0490]      FIGS. 12A and 12B  depict a different modular sliding hook-and-slot mechanism between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a modular support leg  611 A containing extended and downward-facing hook elements  614 A along the exterior of the spine region  35 A of the section member  30 A. Hooked rail element  610 A also contains another modular support leg  612 A along the cover  32 A of section member  30 A. The geometry of these extended hook elements  614 A make an even more defined channel through which the slotted rail of section member  30 B can slide through, aiding in the ease of use and zip-like attachment technique. A complimentary slot element located along the modular support leg  511 B contains a protruding curved element  513 B with slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  514 A. The modular support legs  511 A,B,  512  A,B,  611 A,B, and  612  A,B are also composed of breaks  515 A,B, and  615 A,B that allow portions of the support legs for slotted rail  510 A,B, and  610 A,B to be reattached and or detached from the whole. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  513 B into the complimentary unique hook elements  614 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  614 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  610 A and slotted rail of section member  30 B join together. 
         [0491]      FIGS. 13A ,  13 B, and  13 C depict a sliding hook-and-slot mechanism with stopper elements between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this iteration, both the hooked and slotted rails have an extended support leg attached to the spine region of the section member. The hooks are also open to an alternative direction in this iteration of the present invention. The hooks also maintain an alternative geometry with a much narrower entrance, creating an easier attachment by sliding the slotted-rail through the hooked-rails cylindrical-like channel down the center of its hooks. There is also a unique stopper element that aids the hooked-rail and slotted-rail to correctly nest within each other for proper mating of the elements to ensure the full range of hinging motion. In this embodiment, there is a support leg  621 A containing extended and downward-facing hook elements  624 A along the exterior of the spine region  35 A of the section member  30 A. The geometry of these extended hook elements  624 A make an even more defined channel through which the slotted rail of section member  30 B can slide through, aiding in the ease of use and zip-like attachment technique. A complimentary slot element located along the support leg  521 B contains a protruding curved element  523 B containing slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  524 A. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  523 B into the complimentary unique hook elements  624 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  624 A. Stopper elements help align slotted rail  520 B correctly with hooked rail  620 A. A unique ball-like element  528 B is located at an end of the curved protruding element  523 B. This ball-like element is captured through a flexible but durable hook-like element  628 A, which is located along hooked rail  620 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  620 A and slotted rail of section member  30 B join together. 
         [0492]      FIGS. 14A ,  14 B, and  14 C depict a modular sliding hook-and-slot mechanism with stopper elements between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this iteration, both the hooked and slotted rails have an extended support leg attached to the spine region of the section member. The hooks are also open to an alternative direction in this iteration of the present invention. The hooks also maintain an alternative geometry with a much narrower entrance, creating an easier attachment by sliding the slotted-rail through the hooked-rails cylindrical-like channel down the center of its hooks. There is also a unique stopper element that aids the hooked-rail and slotted-rail to correctly nest within each other for proper mating of the elements to ensure the full range of hinging motion. In this embodiment, there is a modular support leg  631 A containing extended and downward-facing hook elements  634 A along the exterior of the spine region  35 A of the section member  30 A. The geometry of these extended hook elements  634 A make an even more defined channel through which the slotted rail of section member  30 B can slide through, aiding in the ease of use and zip-like attachment technique. A complimentary slot element located along the modular support leg  531 B contains a protruding curved element  533 B with slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  534 A. The modular support legs  531 A,B, and  631 A,B, are also composed of breaks  535 A,B, and  635 A,B that allow portions of the support legs for slotted rail  530 A,B, and  630 A,B to be reattached and or detached from the whole. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  533 B into the complimentary unique hook elements  634 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  634 A. Stopper elements help align slotted rail  530 B correctly with hooked rail  630 A. A unique ball-like element  538 B is located at an end of the curved protruding element  533 B. This ball-like element is captured through a flexible but durable hook-like element  638 A, which is located along hooked rail  630 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  530 A and slotted rail of section member  30 B join together. 
         [0493]      FIGS. 15A ,  15 B, and  15 C depict another sliding hook-and-slot mechanism with stopper elements between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this iteration, both the hooked and slotted rails have two extended support legs, one attached to the spine region of the section member and another attached to the cover of the section member. The hooks are also open to an alternative direction in this iteration of the present invention. The hooks also maintain an alternative geometry with a much narrower entrance, creating an easier attachment by sliding the slotted-rail through the hooked-rails cylindrical-like channel down the center of its hooks. There is also a unique stopper element that aids the hooked-rail and slotted-rail to correctly nest within each other for proper mating of the elements to ensure the full range of hinging motion. In this embodiment, there is a support leg  641 A containing extended and downward-facing hook elements  644 A along the exterior of the spine region  35 A of the section member  30 A. Hooked rail element  640 A also contains another support leg  642 A along the cover  32 A of section member  30 A. The geometry of these extended hook elements  644 A make an even more defined channel through which the slotted rail of section member  30 B can slide through, aiding in the ease of use and zip-like attachment technique. A complimentary slot element located along the support leg  541 B contains a protruding curved element  543 B containing slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  544 A. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  543 B into the complimentary unique hook elements  644 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  644 A. Stopper elements help align slotted rail  540 B correctly with hooked rail  640 A. A unique ball-like element  548 B is located at an end of the curved protruding element  543 B. This ball-like element is captured through a flexible but durable hook-like element  648 A, which is located along hooked rail  640 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  640 A and slotted rail of section member  30 B join together. 
         [0494]      FIGS. 16A ,  16 B, and  16 C depict a different modular sliding hook-and-slot mechanism with stopper elements between section members  30 A and  30 B, according to an exemplary embodiment of the present invention. In this iteration, both the hooked and slotted rails have two extended support legs, one attached to the spine region of the section member and another attached to the cover of the section member. The hooks are also open to an alternative direction in this iteration of the present invention. The hooks also maintain an alternative geometry with a much narrower entrance, creating an easier attachment by sliding the slotted-rail through the hooked-rails cylindrical-like channel down the center of its hooks. There is also a unique stopper element that aids the hooked-rail and slotted-rail to correctly nest within each other for proper mating of the elements to ensure the full range of hinging motion. In this embodiment, there is a modular support leg  651 A containing extended and downward-facing hook elements  654 A along the exterior of the spine region  35 A of the section member  30 A. Hooked rail element  650 A also contains another modular support leg  652 A along the cover  32 A of section member  30 A. The geometry of these extended hook elements  654 A make an even more defined channel through which the slotted rail of section member  30 B can slide through, aiding in the ease of use and zip-like attachment technique. A complimentary slot element located along the modular support leg  551 B contains a protruding curved element  553 B with slot elements along the exterior of the spine region  35 B of the section member  30 B, similar to  554 A. The modular support legs  551 A,B,  552  A,B,  651 A,B, and  652  A,B are also composed of breaks  555 A,B, and  655 A,B that allow portions of the support legs for slotted rail  550 A,B, and  650 A,B to be reattached and or detached from the whole. This arrangement of complimentary hooks and slots will allow the section member  30 A to attach and be retained by section member  30 B by inserting and/or sliding unique protruding element  553 B into the complimentary unique hook elements  654 A until properly aligned to allow slot elements of section member  30 B to mate with the hook elements  654 A. Stopper elements help align slotted rail  550 B correctly with hooked rail  650 A. A unique ball-like element  558 B is located at an end of the curved protruding element  553 B. This ball-like element is captured through a flexible but durable hook-like element  658 A, which is located along hooked rail  650 A. Once in this position, section members  30 A and  30 B can hinge open and closed, rotating upon the common axis created where hooked rail  650 A and slotted rail of section member  30 B join together. 
         [0495]      FIGS. 17  A,  17 B, and  17 C depict a hook-and-slot mechanism between section member  30 A and book cover  10 A, according to an exemplary embodiment of the present invention. In this embodiment, there is a support leg  661 A containing hook elements  664 A along the exterior of the spine region  35 A of the section member  30 A. A complimentary slot element is located along a protruding curved element  563 A containing slot elements  564 A along the interior of the spine region  15 A of book cover  10 A. This arrangement of complimentary hooks and slots allows the section member  30 A to attach to and be retained by book cover  10 A by inserting and/or sliding unique protruding element  563 A into the complimentary unique hook elements  664 A until properly aligned to allow slot elements  564 A to mate with the hook elements  664 A. Once in this position, section member  30 A and book cover  10 A can hinge open and closed, rotating upon the common axis created where hooked rail  660 A and slotted rail  560 A join together. 
         [0496]      FIGS. 18  A and  18 B depict a slot-and-hook mechanism between section member  30 A and book cover  10 A, according to an exemplary embodiment of the present invention. In this embodiment, there is a support leg  571 A containing a protruding curved element  573 A containing slot elements  574 A. This slotted rail member is attached along the exterior of the spine region  35 A of the section member  30 A. A complimentary hooking element  674 A is located along the interior of the spine region  15 A of book cover  10 A. This arrangement of complimentary hooks and slots allows the section member  30 A to attach to and be retained by book cover  10 A by inserting and/or sliding unique protruding element  573 A into the complimentary unique hook elements  674 A until properly aligned to allow slot elements  574 A to mate with the hook elements  674 A. Once in this position, section member  30 A and book cover  10 A can hinge open and closed, rotating upon the common axis created where hooked rail  670 A and slotted rail  570 A join together. 
         [0497]      FIGS. 19A ,  19 B, and  19 C depict a hook-and-slot mechanism with stopper elements between section member  30 A and book cover  10 A, according to an exemplary embodiment of the present invention. In this embodiment, there is a support leg  681 A containing hook elements  684 A along the exterior of the spine region  35 A of the section member  30 A. A complimentary slot element is located along a protruding curved element  583 A containing slot elements  584 A along the interior of the spine region  15 A of book cover  10 A. This arrangement of complimentary hooks and slots allows the section member  30 A to attach to and be retained by book cover  10 A by inserting and/or sliding unique protruding element  583 A into the complimentary unique hook elements  684 A until properly aligned to allow slot elements  584 A to mate with the hook elements  684 A. Stopper elements help align slotted rail  580 A correctly with hooked rail  680 A. A unique ball-like element  588 B is located at an end of the curved protruding element  583 A. Ball-like element  588 B is captured through a flexible but durable hook-like element  688 A, which is located along hooked rail  680 A. Once in this position, section member  30 A and book cover  10 A can hinge open and closed, rotating upon the common axis created where hooked rail  680 A and slotted rail  580 A join together. 
         [0498]      FIGS. 20A ,  20 B, and  20 C depict a slot-and-hook mechanism with stopper elements between section member  30 A and book cover  10 A, according to an exemplary embodiment of the present invention. In this embodiment, there is a support leg  591 A containing a protruding curved element  593 A containing slot elements  594 A. This slotted rail member  590 A is attached along the exterior of the spine region  35 A of the section member  30 A. A complimentary hooking element  694 A is located along the interior of the spine region  15 A of book cover  10 A. This arrangement of complimentary hooks and slots allows the section member  30 A to attach to and be retained by book cover  10 A by inserting and/or sliding unique protruding element  593 A into the complimentary unique hook elements  694 A until properly aligned to allow slot elements  594 A to mate with the hook elements  694 A. Stopper elements help align slotted rail  590 A correctly with hooked rail  690 A. A unique ball-like element  598 A is located at an end of the curved protruding element  593 A. This ball-like element is captured through a flexible but durable hook-like element  698 A, which is located along hooked rail  690 A. Once in this position, section member  30 A and book cover  10 A can hinge open and closed, rotating upon the common axis created where hooked rail  690 A and slotted rail  590 A join together. 
         [0499]      FIGS. 21A ,  21 B,  21 C,  21 D,  21 E, and  21 F depict a hook-and-slot mechanism between booklet member  40 A and book cover  10 A, according to an exemplary embodiment of the present invention. In this embodiment, there is a support leg  801 A containing hook elements  804 A. Support leg  801 A is attached by a mechanical means along the exterior of the spine region  45 A of the booklet member  40 A. A cylindrical rod element  46 A hinges at one end of the support leg  801 A at hinge  48 A and is captured at the other end through a flexible and durable hook-like element  47 A. The rod travels in between booklet covers  41 A and  42 A, capturing the spine region  45 A in the grip between cylindrical rod  46 A and hooking rail support leg  801 A. A complimentary slot element is located along a protruding curved element  703 A containing slot elements  704 A along the interior of the spine region  15 A of book cover  10 A. This arrangement of complimentary hooks and slots allows the booklet member  40 A to attach to and be retained by book cover  10 A by inserting and/or sliding unique protruding element  703 A into the complimentary unique hook elements  804 A until properly aligned to allow slot elements  704 A to mate with the hook elements  804 A. Once in this position, booklet member  40 A and book cover  10 A can hinge open and closed, rotating upon the common axis created where hooked rail  800 A and slotted rail  700 A join together. 
         [0500]      FIGS. 22  A,  22 B, and  22 C depict a slot-and-hook mechanism between booklet member  40 A and book cover  10 A, according to an exemplary embodiment of the present invention. In this embodiment, there is a support leg  811 A containing hook elements  814 A. Support leg  811 A is attached by a mechanical means along the exterior of the spine region  45 A of the booklet member  40 A. A cylindrical rod element  46 A hinges at one end of the support leg  811 A at hinge  48 A and is captured at the other end through a flexible and durable hook-like element  47 A. The rod travels in between booklet covers  41 A and  42 A, capturing the spine region  45 A in the grip between cylindrical rod  46 A and hooking rail support leg  811 A. A complimentary hooking element  814 A is located along the interior of the spine region  15 A of book cover  10 A. This arrangement of complimentary hooks and slots allows the section member  30 A to attach to and be retained by book cover  10 A by inserting and/or sliding unique protruding element  713 A into the complimentary unique hook elements  814 A until properly aligned to allow slot elements  714 A to mate with the hook elements  814 A. Once in this position, booklet member  40 A and book cover  10 A can hinge open and closed, rotating upon the common axis created where hooked rail  810 A and slotted rail  710 A join together. 
         [0501]      FIGS. 23A ,  23 B, and  23 C depict a hook-and-slot mechanism with stopper elements between booklet member  40 A and book cover  10 A, according to an exemplary embodiment of the present invention. In this embodiment, there is a support leg  821 A containing hook elements  824 A. Support leg  821 A is attached by a mechanical means along the exterior of the spine region  45 A of the booklet member  40 A. A cylindrical rod element  46 A hinges at one end of the support leg  821 A at hinge  48 A and is captured at the other end through a flexible and durable hook-like element  47 A. The rod travels in between booklet covers  41 A and  42 A, capturing the spine region  45 A in the grip between cylindrical rod  46 A and hooking rail support leg  821 A. A complimentary slot element is located along a protruding curved element  723 A containing slot elements  724 A along the interior of the spine region  15 A of book cover  10 A. This arrangement of complimentary hooks and slots allows the section member  30 A to attach to and be retained by book cover  10 A by inserting and/or sliding unique protruding element  723 A into the complimentary unique hook elements  824 A until properly aligned to allow slot elements  724 A to mate with the hook elements  824 A. Stopper elements help align slotted rail  720 A correctly with hooked rail  820 A. A unique ball-like element  728 A is located at an end of the curved protruding element  723 A. This ball-like element is captured through a flexible but durable hook-like element  828 A, which is located along hooked rail  820 A. Once in this position, booklet member  40 A and book cover  10 A can hinge open and closed, rotating upon the common axis created where hooked rail  820 A and slotted rail  720 A join together. 
         [0502]      FIGS. 24A ,  24 B, and  24 C depict a slot-and-hook mechanism with stopper elements between booklet member  40 A and book cover  10 A, according to an exemplary embodiment of the present invention. In this embodiment, there is a support leg  731 A containing hook elements  834 A. Support leg  731 A is attached by a mechanical means along the exterior of the spine region  45 A of the booklet member  40 A. A cylindrical rod element  46 A hinges at one end of the support leg  731 A at hinge  48 A and is captured at the other end through a flexible and durable hook-like element  47 A. The rod travels in between booklet covers  41 A and  42 A, capturing the spine region  45 A in the grip between cylindrical rod  46 A and hooking rail support leg  731 A. A complimentary hooking element  834 A is located along the interior of the spine region  15 A of book cover  10 A. This arrangement of complimentary hooks and slots allows the booklet member  40 A to attach to and be retained by book cover  10 A by inserting and/or sliding unique protruding element  733 A into the complimentary unique hook elements  834 A until properly aligned to allow slot elements  734 A to mate with the hook elements  834 A. Stopper elements help align slotted rail  730 A correctly with hooked rail  830 A. A unique ball-like element  738 B is located at an end of the curved protruding element  733 A. This ball-like element is captured through a flexible but durable hook-like element  838 A, which is located along hooked rail  830 A. Once in this position, booklet member  40 A and book cover  10 A can hinge open and closed, rotating upon the common axis created where hooked rail  830 A and slotted rail  730 A join together. 
         [0503]      FIGS. 25A ,  25 B,  25 C,  25 D, and  25 E depict a hook-and-slot mechanism between stitch-bound members  50 A and  50 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a three-walled support leg  841 A containing upward-facing hook elements  844 A along one edge of the three-walled support leg  841 A and slot elements  744 A within the curved protrusion element  743 A along the opposite edge of the three-walled support leg  841 A. To limit interference between stitch-bound member  50 A and  50 B, support legs  742 A and  842 A anchor support leg  841 A in a like manner to how support legs  742 B and  842 B anchor support leg  841 B and cover the stitch elements  58 B along stitch-bound member  50 B. Attachment member  840 A is secured to stitch-bound member  50 A through a mechanical means. A cylindrical rod element  56 A hinges at one end of the three-walled support leg  841 A at hinge  59 A and is captured at the other end through a flexible and durable hook-like element  57 A. The rod travels in along the stitches  58 A along the spine region  55 A of stitch bound member  50 A, capturing the spine region  55 A in the grip between cylindrical rod  56 A and hooking rail support leg  841 A. The attachment member  840 B containing like attachment elements  743 B,  744 B, and  844 B is attached in a like manner to stitch-bound member  50 B. This arrangement of complimentary hooks and slots allows the stitch-bound member  50 A to attach to and be retained by stitch-bound member  50 B by inserting and/or sliding unique protruding element  743 B into the complimentary unique hook elements  844 A until properly aligned to allow slot elements  744 B to mate with the hook elements  844 A. Once in this position, stitch-bound members  50 A and  50 B can hinge open and closed, rotating upon the common axis created where hooked rail  840 A and slotted rail  740 B join together. 
         [0504]      FIGS. 26A ,  26 B, and  26 C depict another hook-and-slot mechanism between stitch-bound members  50 A and  50 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a three-walled support leg  851 A containing downward-facing hook elements  854 A along one edge of the three-walled support leg  851 A and slot elements  754 A within the curved protrusion element  753 A along the opposite edge of the three-walled support leg  851 A. To limit interference between stitch-bound member  50 A and  50 B, support legs  752 A and  852 A anchor support leg  851 A in a like manner to how support legs  752 B and  852 B anchor support leg  851 B and cover the stitch elements  58 B along stitch-bound member  50 B. Attaching member  850 A is secured to stitch-bound member  50 A through a mechanical means. A cylindrical rod element  56 A hinges at one end of the three-walled support leg  851 A at hinge  59 A and is captured at the other end through a flexible and durable hook-like element  57 A. The rod travels in along the stitches  58 A along the spine region  55 A of stitch bound member  50 A, capturing the spine region  55 A in the grip between cylindrical rod  56 A and hooking rail support leg  851 A. Attachment member  850 B contains like attachment elements  753 B,  754 B, and  854 B is secured in a like manner to stitch-bound member  50 B. This arrangement of complimentary hooks and slots allows the stitch-bound member  50 A to attach to and be retained by stitch-bound member  50 B by inserting and/or sliding unique protruding element  753 B into the complimentary unique hook elements  854 A until properly aligned to allow slot elements  754 B to mate with the hook elements  854 A. Once in this position, stitch-bound members  50 A and  50 B can hinge open and closed, rotating upon the common axis created where hooked rail  850 A and slotted rail  750 B join together. 
         [0505]      FIGS. 27A ,  27 B, and  27 C depict a different hook-and-slot mechanism between stitch-bound members  50 A and  50 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a three-walled support leg  861 A containing extended and downward-facing hook elements  864 A along one edge of the three-walled support leg  861 A and slot elements  764 A within the curved protrusion element  763 A along the opposite edge of the three-walled support leg  861 A. The geometry of these extended hook elements  864 A make an even more defined channel through which the slotted rail  763 B can slide through, aiding in the ease of use and zip-like attachment technique. To limit interference between stitch-bound member  50 A and  50 B, support legs  762 A and  862 A anchor support leg  861 A in a like manner to how support legs  762 B and  862 B anchor support leg  861 B and cover the stitch elements  58 B along stitch-bound member  50 B. Attachment member  860 A is secured to stitch-bound member  50 A through a mechanical means. A cylindrical rod element  56 A hinges at one end of the three-walled support leg  861 A at hinge  59 A and is captured at the other end through a flexible and durable hook-like element  57 A. The rod travels in along the stitches  58 A along the spine region  55 A of stitch bound member  50 A, capturing the spine region  55 A in the grip between cylindrical rod  56 A and hooking rail support leg  861 A. Attachment member  860 B contains like attachment elements  763 B,  764 B, and  864 B is secured in a like manner to stitch-bound member  50 B. This arrangement of complimentary hooks and slots allows the stitch-bound member  50 A to attach to and be retained by stitch-bound member  50 B by inserting and/or sliding unique protruding element  763 B into the complimentary unique hook elements  864 A until properly aligned to allow slot elements  764 B to mate with the hook elements  864 A. Once in this position, stitch-bound members  50 A and  50 B can hinge open and closed, rotating upon the common axis created where hooked rail  860 A and slotted rail  760 B join together. 
         [0506]      FIGS. 28A ,  28 B, and  28 C depict a hook-and-slot mechanism with stopper elements between stitch-bound members  50 A and  50 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a three-walled support leg  871 A containing extended and downward-facing hook elements  874 A along one edge of the three-walled support leg  871 A and slot elements  774 A within the curved protrusion element  773 A along the opposite edge of the three-walled support leg  871 A. The geometry of these extended hook elements  874 A make an even more defined channel through which the slotted rail  773 B can slide through, aiding in the ease of use and zip-like attachment technique. To limit interference between stitch-bound member  50 A and  50 B, support legs  772 A and  872 A anchor support leg  871 A in a like manner to how support legs  772 B and  872 B anchor support leg  861 B and cover the stitch elements  58 B along stitch-bound member  50 B. Attachment member  870 A is secured to stitch-bound member  50 A through a mechanical means. A cylindrical rod element  56 A hinges at one end of the three-walled support leg  871 A at hinge  59 A and is captured at the other end through a flexible and durable hook-like element  57 A. The rod travels in along the stitches  58 A along the spine region  55 A of stitch bound member  50 A, capturing the spine region  55 A in the grip between cylindrical rod  56 A and hooking rail support leg  871 A. Attachment member  870 B contains like attachment elements  773 B,  774 B, and  874 B is secured in a like manner to stitch-bound member  50 B. This arrangement of complimentary hooks and slots allows the stitch-bound member  50 A to attach to and be retained by stitch-bound member  50 B by inserting and/or sliding unique protruding element  773 B into the complimentary unique hook elements  874 A until properly aligned to allow slot elements  774 B to mate with the hook elements  874 A. Stopper elements help align attachment members  870 B and  870 A. A unique ball-like element  778 B is located at an end of the curved protruding element  773 B. This ball-like element is captured through a flexible but durable hook-like element  878 A, which is located along attachment member  870 A. Once in this position, stitch-bound members  50 A and  50 B can hinge open and closed, rotating upon the common axis created where hooked rail  870 A and slotted rail  770 B join together. 
         [0507]      FIGS. 29A ,  29 B,  29 C, and  29 D depict a hook-and-slot mechanism between unbound print members  60 A and  60 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a three-walled tension support leg  881 A containing upward-facing hook elements  884 A along one edge of support leg  881 A and slot elements  784 A within the curved protrusion element  783 A along the opposite edge of support leg  881 A. Unbound member  60 A is inserted and/or slid through the support legs  782 A and  882 A, creating a tension along the spine region  65 A of unbound print member  60 A. This tension non-permanently secures attachment member  880 A to  60 A. Attachment member  880 B contains like attachment elements  783 B,  784 B, and  884 B and is secured in a like manner to unbound print member  60 B. This arrangement of complimentary hooks and slots allows the unbound member  60 A to attach to and be retained by unbound member  60 B by inserting and/or sliding unique protruding element  783 B into the complimentary unique hook elements  884 A until properly aligned to allow slot elements  784 B to mate with the hook elements  884 A. Once in this position, stitch-bound members  60 A and  60 B can hinge open and closed, rotating upon the common axis created where hooked rail  880 A and slotted rail  780 B join together. 
         [0508]      FIGS. 30A and 30B  depict another hook-and-slot mechanism between unbound print members  60 A and  60 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a three-walled tension support leg  891 A containing downward-facing hook elements  894 A along one edge of support leg  891 A and slot elements  794 A within the curved protrusion element  793 A along the opposite edge of support leg  891 A. Unbound member  60 A is inserted and/or slid through the support legs  792 A and  892 A, creating a tension along the spine region  65 A of unbound print member  60 A. This tension non-permanently secures attachment member  890 A to  60 A, as seen in  FIG. 29A . Attachment member of unbound member  60 B contains like attachment elements  793 B,  794 B, and  894 B and is secured in a like manner to unbound print member  60 B. This arrangement of complimentary hooks and slots allows the unbound member  60 A to attach to and be retained by unbound member  60 B by inserting and/or sliding unique protruding element  793 B into the complimentary unique hook elements  894 A until properly aligned to allow slot elements of unbound member  60 B to mate with the hook elements  894 A. Once in this position, stitch-bound members  60 A and  60 B can hinge open and closed, rotating upon the common axis created where hooked rail  890 A and slotted rail of unbound member  60 B join together. 
         [0509]      FIGS. 31A ,  31 B and  31 C depict a different hook-and-slot mechanism between unbound print members  60 A and  60 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a three-walled tension support leg  1001 A containing extended downward-facing hook elements  1004 A along one edge of support leg  1001 A and slot elements  904 A within the curved protrusion element  903 A along the opposite edge of support leg  901 A. The geometry of these extended hook elements  1004 A make an even more defined channel through which the slotted rail  903 B can slide through, aiding in the ease of use and zip-like attachment technique. Unbound member  60 A is inserted and/or slid through the support legs  902 A and  1002 A, creating a tension along the spine region  65 A of unbound print member  60 A. This tension non-permanently secures attachment member of unbound member  60 A to unbound member  60 A. Attachment member of unbound member  60 B contains like attachment elements  903 B,  904 B, and  1004 B and is secured in a like manner to unbound print member  60 B. This arrangement of complimentary hooks and slots allows the unbound member  60 A to attach to and be retained by unbound member  60 B by inserting and/or sliding unique protruding element  903 B into the complimentary unique hook elements  1004 A until properly aligned to allow slot elements of unbound member  60 B to mate with the hook elements  1004 A. Once in this position, stitch-bound members  60 A and  60 B can hinge open and closed, rotating upon the common axis created where hooked rail  1000 A and slotted rail of unbound member  60 B join together. 
         [0510]      FIGS. 32A ,  32 B and  32 C depict a hook-and-slot mechanism with stopper elements between unbound print members  60 A and  60 B, according to an exemplary embodiment of the present invention. In this embodiment, there is a three-walled tension support leg  1011 A containing extended downward-facing hook elements  1014 A along one edge of support leg  1011 A and slot elements  914 A within the curved protrusion element  913 A along the opposite edge of support leg  911 A. The geometry of these extended hook elements  1014 A make an even more defined channel through which the slotted rail  913 B can slide through, aiding in the ease of use and zip-like attachment technique. Unbound member  60 A is inserted and/or slid through the support legs  912 A and  1012 A, creating a tension along the spine region  65 A of unbound print member  60 A. This tension non-permanently secures attachment member of unbound member  60 A to  60 A. Attachment member of unbound member  60 B contains like attachment elements  913 B, slot elements comparable to  914 A, and hook elements comparable to  1014 A and is secured in a like manner to unbound print member  60 B. This arrangement of complimentary hooks and slots allows the unbound member  60 A to attach to and be retained by unbound member  60 B by inserting and/or sliding unique protruding element  913 B into the complimentary unique hook elements  1014 A until properly aligned to allow slot elements of unbound member  60 B to mate with the hook elements  1014 A. Stopper elements help align attachment members of unbound member  60 B to those of unbound member  60 A. A unique ball-like element  918 B is located at an end of the curved protruding element  913 B. This ball-like element is captured through a flexible but durable hook-like element  1018 A, which is located along attachment member of unbound member  60 A. Once in this position, stitch-bound members  60 A and  60 B can hinge open and closed, rotating upon the common axis created where hooked rail of unbound member  60 A and slotted rail of unbound member  60 B join together. 
         [0511]      FIGS. 33A ,  33 B, and  33 C depict an alternative hook-and-slot mechanism between unbound print members  60 A and  60 B, according to an exemplary embodiment of the present invention. In this embodiment, hinge  70 A attaches to support legs  921 A and  1021 A via the hinge wings  71 A. Support leg  1021 A contains upward-facing hook elements  1024 A. Support leg  921 A contains complimentary slot elements  924 A within the curved protrusion element  923 A. Unbound member  60 A is inserted and/or slid through the support legs  922 A and  1022 A, creating a tension along the spine region  65 A of unbound print member  60 A. This tension non-permanently secures attachment member of unbound member  60 A to unbound member  60 A. Alternatively, one can hinge support leg  922 A to an angle that makes it easier to place spine region  65 A of unbound print member  60 A within the open area between support legs  922 A and  1022 A. Unbound print member  60 B is secured in a like manner between hinging support legs  922 B and  1022 B. Support leg  922 B contains attaching elements  923 B, a slot element comparable to  924 A, and support leg  1022 B contains hook elements  1024 B. This arrangement of complimentary hooks and slots allows the unbound member  60 A to attach to and be retained by unbound member  60 B by inserting and/or sliding unique protruding element  923 B into the complimentary unique hook elements  1024 A until properly aligned to allow slot elements of unbound member  60 B to mate with the hook elements  1024 A. Once in this position, stitch-bound members  60 A and  60 B can hinge open and closed, rotating upon the common axis created where hooked rail of unbound member  60 A and slotted rail of unbound member  60 B join together. 
         [0512]      FIGS. 34A ,  34 B and  34 C depict another hook-and-slot mechanism between unbound print members  60 A and  60 B, according to an exemplary embodiment of the present invention. In this embodiment, hinge  70 A attaches to support legs  931 A and  1031 A via the hinge wings  71 A. Support leg  1031 A contains downward-facing hook elements  1034 A. Support leg  931 A contains complimentary slot elements  944 A within the curved protrusion element  933 A. Unbound member  60 A is inserted and/or slid through the support legs  932 A and  1032 A, creating a tension along the spine region  65 A of unbound print member  60 A. This tension non-permanently secures attachment member of unbound member  60 A to unbound member  60 A. Alternatively, one can hinge support leg  932 A to an angle that makes it easier to place spine region  65 A of unbound print member  60 A within the open area between support legs  932 A and  1032 A. Unbound print member  60 B is secured in a like manner between hinging support legs  932 B and  1032 B. Support leg  932 B contains attaching elements  933 B, slot elements comparable to  944 A, and support leg  1032 B contains hook elements  1034 B. This arrangement of complimentary hooks and slots allows the unbound member  60 A to attach to and be retained by unbound member  60 B by inserting and/or sliding unique protruding element  933 B into the complimentary unique hook elements  1034 A until properly aligned to allow slot elements of unbound member  60 B to mate with the hook elements  1034 A. Once in this position, stitch-bound members  60 A and  60 B can hinge open and closed, rotating upon the common axis created where hooked rail of unbound member  60 A and slotted rail of unbound member  60 B join together. 
         [0513]      FIGS. 35A ,  35 B and  35 C depict a different hook-and-slot mechanism between unbound print members  60 A and  60 B, according to an exemplary embodiment of the present invention. In this embodiment, hinge  70 A attaches to support legs  941 A and  1041 A via the hinge wings  71 A. Support leg  1041 A contains extended and downward-facing hook elements  1044 A. Support leg  941 A contains complimentary slot elements  944 A within the curved protrusion element  943 A. The geometry of these extended hook elements  1044 A make an even more defined channel through which the slotted rail  943 B can slide through, aiding in the ease of use and zip-like attachment technique. Unbound member  60 A is inserted and/or slid through the support legs  942 A and  1042 A, creating a tension along the spine region  65 A of unbound print member  60 A. This tension non-permanently secures attachment member of unbound member  60 A to unbound member  60 A. Alternatively, one can hinge support leg  942 A to an angle that makes it easier to place spine region  65 A of unbound print member  60 A within the open area between support legs  942 A and  1042 A. Unbound print member  60 B is secured in a like manner between hinging support legs  942 B and  1042 B. Support leg  942 B contains attaching elements  943 B, slot elements comparable to  944 A, and support leg  1042 B contains hook elements  1044 B. This arrangement of complimentary hooks and slots allows the unbound member  60 A to attach to and be retained by unbound member  60 B by inserting and/or sliding unique protruding element  943 B into the complimentary unique hook elements  1044 A until properly aligned to allow slot elements of unbound member  60 B to mate with the hook elements  1044 A. Once in this position, stitch-bound members  60 A and  60 B can hinge open and closed, rotating upon the common axis created where hooked rail of unbound member  60 A and slotted rail of unbound member  60 B join together. 
         [0514]      FIGS. 36A ,  36 B,  36 C, and  36 D depict a hook-and-slot mechanism with stopper elements between unbound print members  60 A and  60 B, according to an exemplary embodiment of the present invention. In this embodiment, hinge  70 A attaches to support legs  951 A and  1051 A via the hinge wings  71 A. Support leg  1051 A contains extended and downward-facing hook elements  1054 A. Support leg  951 A contains complimentary slot elements  954 A within the curved protrusion element  953 A. The geometry of these extended hook elements  1054 A make an even more defined channel through which the slotted rail  953 B can slide through, aiding in the ease of use and zip-like attachment technique. Unbound member  60 A is inserted and/or slid through the support legs  952 A and  1052 A, creating a tension along the spine region  65 A of unbound print member  60 A. This tension non-permanently secures attachment member of unbound member  60 A to unbound member  60 A. Alternatively, one can hinge support leg  952 A to an angle that makes it easier to place spine region  65 A of unbound print member  60 A within the open area between support legs  952 A and  1052 A. Unbound print member  60 B is secured in a like manner between hinging support legs  952 B and  1052 B. Support leg  952 B contains attaching elements  953 B, slot elements comparable to  954 A, and support leg  1052 B contains hook elements  1054 B. This arrangement of complimentary hooks and slots will allow the unbound member  60 A to unbound member  60 B by inserting and/or sliding unique protruding element  953 B into the complimentary unique hook elements  1054 A until properly aligned to allow slot elements of unbound member  60 B to mate with the hook elements  1054 A. Stopper elements help align attachment members of unbound member  60 B with those of unbound member  60 A. A unique ball-like element  958 B is located at an end of the curved protruding element  953 B. This ball-like element is captured through a flexible but durable hook-like element  1058 A, which is located along attachment member of unbound member  60 A. Once in this position, stitch-bound members  60 A and  60 B can hinge open and closed, rotating upon the common axis created where hooked rail of unbound member  60 A and slotted rail of unbound member  60 B join together. 
         [0515]    One of the many uses of the present invention is for books that are traditionally bulky and heavy, and which may require updates and additional versions to be reprinted in an effort to contain the most current information. Sections of the book may be republished with the most up-to-date material. Users of the book may also choose to separate sections of the text from the whole by detaching the sections from the book cover. The sections may be removed by sliding and/or pulling the individually-bound section members from another section member and/or book cover. 
         [0516]    As previously mentioned in the present disclosure, variations in the above embodiments include a plurality of the adjoining members described for each embodiment. Each of the above mechanisms depicted in a unique drawing is merely exemplary of the invention as described herein and claimed within the scope of the present application. 
         [0517]    The foregoing disclosure of the preferred embodiments of the present invention has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many variations and modifications of the embodiments described herein will be apparent to one of ordinary skill in the art in light of the above disclosure. The scope of the invention is to be defined only by the claims appended hereto, and by their equivalents. 
         [0518]    Further, in describing representative embodiments of the present invention, the specification may have presented the method and/or process of the present invention as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth herein, the method or process should not be limited to the particular sequence of steps described. As one of ordinary skill in the art would appreciate, other sequences of steps may be possible. Therefore, the particular order of the steps set forth in the specification should not be construed as limitations on the claims. In addition, the claims directed to the method and/or process of the present invention should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the present invention.