Bookbinding method, in which cold glue is used for gluing the spine/joint, the interior of the spine/joint of the printed matter/ text-blocks is insulated with a special tape to prevent leakage of the cold glue in the interior, silicon glue is applied in the holes of the thread seams to prevent inner staining of the printed matter, a paper case is provided and zippers are arranged at the edge of the printed matter/text-blocks, so as to form a printed matter/folder which is closed with a zipper, having a soft cover and a reinforced joint, the method comprising: providing a main body by folding large paper sheets to printing sheets/signatures; arranging the outer cover; gluing two 4-sheet end papers, one on the front and one on the back printing sheet; cutting, meanwhile, the cover and making an incision at the centre of the cover, where a decorative item is positioned; joining the covers to the two end papers; performing laying out, by the procedure of assembling the printing pages, wherein, on the left side of the sheets, a perforation and holes are made for inserting the pages in a dossier; effecting sewing with a thread and applying silicon glue into the holes made by the thread seam on the outside of the spine joint, so that the strength of the threads is reinforced; applying cold glue in order to reinforce the bookbinding; lining the spine/joint with an additional material/fabric which covers the spine/joint and a part of the cover; screen-printing the spine/joint and making a further seam on the fabric for further reinforcement; trimming the periphery of the printed matter; gluing a bookmark to the upper side of the back cover, which is subjected to creasing, i.e. grooves are made which fold easier than cardboard; gluing a paper case at various points and on the inside of the back cover; and arranging a zipper on the outer side of the printed matter by sewing; the method being characterised in that; before the cold glue is applied, the spine/joint is lined with a special tape which does not allow the cold glue to pass through the holes of the thread seams in the book. providing a main body by folding large paper sheets to printing sheets/signatures; arranging the outer cover; gluing two 4-sheet end papers, one on the front and one on the back printing sheet; cutting, meanwhile, the cover and making an incision at the centre of the cover, where a decorative item is positioned; joining the covers to the two end papers; performing laying out, by the procedure of assembling the printing pages, wherein, on the left side of the sheets, a perforation and holes are made for inserting the pages in a dossier; effecting sewing with a thread and applying silicon glue into the holes made by the thread seam on the outside of the spine joint, so that the strength of the threads is reinforced; applying cold glue in order to reinforce the bookbinding; lining the spine/joint with an additional material/fabric which covers the spine/joint and a part of the cover; screen-printing the spine/joint and making a further seam on the fabric for further reinforcement; trimming the periphery of the printed matter; gluing a bookmark to the upper side of the back cover, which is subjected to creasing, i.e. grooves are made which fold easier than cardboard; gluing a paper case at various points and on the inside of the back cover; and arranging a zipper on the outer side of the printed matter by sewing; the method being characterised in that; before the cold glue is applied, the spine/joint is lined with a special tape which does not allow the cold glue to pass through the holes of the thread seams in the book.