laptak2003/AmazonDataScience huggingface dataset:
This is a great start to learning Python. This is first language I have seriously started to learn and this book makes Python easy to understand and learn.
Very informative, good for beginners!
I have read this book. The authors very well presented the book in front of us. The book fascinated me every single page. I am very much interested in reading his written books. I would like to recommend this book to everyone.
It is a very nicely organized thorough book with well formed Python concepts. I really liked this book...
You can learn about what are the different python data types, variables and basic operators.
This is a great book for learning Ultimate Beginners Guide to Python Programming.
John Chambers, a pioneer and legend for many statistician who is the father of S language and the dream fulfiller for statisticians. The graphic statistics is once a dream for statistician from 1960's. Many statistician once dreamed about to use the high-quality graphics to say something about statistics. the dream get realized by Mr. chambers. The S language is born from the Bell lab which is a great place for the Unix lovers and the once expensive printer users.Now it is transplanted to the Microsoft Windows more than two decades. Mr. Chambers helps statistician fulfill the dream of last century- the graphic statistics and brings the people to the promised land of statistical computing. He is a superstar for statisticians, like Jeff Bezos to the Online book selling. The legend has something to say. So..we..LISTEN.....
For the past year or so I have been puttering with R, but never really "got it".  This book is just what I've been looking for, to understand what R is "thinking".  It isn't a cookbook with loads of examples, but a thorough guide to understanding how R works and how to be productive in it.  After only an hour, I understand data.frames, and the environment structure better than several nights of struggling with the online documentation.  This isn't really a book about how to analyze data, it's about becoming comfortable and expert in R to make it easy to analyze data. Once you understand the tool, the data analysis becomes much much easier.I agree with the reviewers who say it's chatty, but that makes it very readable.  You don't have to work every example to understand the points the book is making.  Likewise, it _is_ cross referenced to death, but it's easy enough to read over the links, and when you're trying to make sense of something, the cross references do take you to the right information to round out a picture.
This is not an introductory text, and should not be the first R book in your collection.  However, if you are a "pretty good" R programmer and want to take the next step in becoming an "expert" R programmer, this is your Bible.For me, this book fills the hole of understanding how R thinks.  To get a complete and accurate view of why R works the way it does, the author supplements the technical discussion with the philosophy of R, as well as pieces of the history of statistical computing and computing in general.Others might consider this integration of technical detail with philosophical and historical background (complete with Star Trek references) to be "wordy", but this is precisely why I bought the book.  If one is interested only in the purely technical aspects, the thorough documentation on the R website is free.  I consider the insights - provided by the mind that laid the foundation for R in S - to be well worth the price of the book.That said, this book is an invaluable guide (both technical and philosophical) on the road to becoming an R expert.  I'm looking forward to putting some dog ears on my copy.
It is a great book but don't expect to learn how to program in R after reading this book. I had taken couple short courses online. Each one was only few hours. I thought this book can help me with better understanding R and how to program in R. This book has helped with gaining more knowledge about R and even it has introduced me to Perl. As some other reviewers have noted, this book provides historical context about R. However, as another reviewer noted, organization of book is awkward. Because the writer knows the subject so well, he has hard time teaching it. I am still glad that I read the book, but don't expect to be a better R programmer if you are at your initial stages of R.
The book arrived on time and in good condition. I need it for a class next year.
I bought this book at the 2008 JSM. After I read the first 3 chapters I found that it is too wordy. But I have to agree that this is a good book for understanding the basic mechanism of R. If you are an advanced user you might want to read the S programming which is written by W.N. Venables & B.D Ripley. It is much better than Software for Data Analysis with R.
I wouldn't consider myself an R expert, but I do have some R-programming experience. I also have a lot of experience in using other programming languages, so I guess I have the technical prerequisites to understand a text of this level with some effort. Said that, however interesting the technical information might be in this book, I wonder whether Mr. Chambers is a native english speaker or whether this book was originally written in another language and has been machine-translated by Babelfish. The english is bad, non-sensical at times, and the philosophical parts of the book, liked by some of the reviewers here, are in my view useless babble. I wish this book had had a proofreader with some didactical expertise. I don't expect this kind of book to follow primary school didactical guidelines, but here the author doesn't seem to give a dime about correct use of grammar and linguistic concepts. In the end, one can understand what he wants to say, but it needs an intellectual effort that should rather have been done by the author in writing good english, leaving more resources to the reader to understand the actual technical stuff.
Reading the thoughts of a key designer or inventor of a programming language is always a treat. John Chambers was there when S was born, and perhaps no one is better qualified to write about the rationale behind the design of S-Plus and R than him. Unlike many books written by the creators of a programming language this one is not an introductory text. As the preface makes clear, it is written for relatively experienced R/S-Plus programmers who want to understand the design choices behind the language.The text assumes that the reader is familiar with packages, generic functions, model fitting formulae, and much of the base functions and libraries. The first instance of an interaction with the R system in this text (Section 2.2, page 13 in my copy) does not quite work if you copy and paste it! The next chapter starts with "constructing a fairly complicated linear model." Again, the code snippet there will not work if you just type it in, and there is no detailed explanation of what the code snippet actually does (but it would be "obvious" to some one experienced with statistical analysis in this language). Still another example is chapter 9 which describes (mostly S4) object classes. I doubt anyone without considerable experience with object oriented programming and the generic function mechanism in R would be able to make sense of this chapter without a lot of effort; consider, for example, that the term "slot" does not even have any entry in the index!I found the writing style formal, hard to read, and somewhat turgid. There are many seemingly bizzare choices of examples or topics, most notably an introduction to perl programming! I ended up comparing the text with the paper "Evaluating the design of the R language" from the ECOOP 2012 proceedings (easily found on the web). In a few pages that paper seemed to provide a considerable portion of the insight that this book contains, but without the somewhat overwrought philosophizing and Star Trek references. I cannot help but think a better editor would have helped improve this book tremendously.  So I have to say that the book was a bit of a let down for me.I did find parts of this book truly outstanding and enjoyable. In my opinion the final chapter, titled "How R Works", should be required reading for any serious R programmer. The early chapters that dealt with debugging and organizing packages, as opposed to merely detailing language features, were very insightful. The focus is always on why the language works the way it does, and how it was intended to be used. Yes, this book can be considered the "Prime Directive" for R programmers!In the end this is a book that has definitely found a place on my bookshelf, but it is one I cannot really love. It's hard to read, and meanders too much. But it sprinkles enough truly insightful information through its four hundred odd pages that it is worth reading at least once, and perhaps many more times.
John Chambers was one of the creators of S, the ancestor of R, at Bell Labs in 1976, when his colleagues there were creating Unix and C, and as those languages revolutionized computing so did S revolutionize the practice of statistics. In other words, there can be few other people with Chambers' depth of understanding of how S and R came to be what they are. If you are an experienced user of R, you will enjoy this book very much, and learn many helpful things you didn't know, but it is not a book for beginners. (My favorite book on R for beginners is Garrett Grolemund's "Hands-On Programming with R".)The reviewer named Code Monkey "found the writing style formal, hard to read, and somewhat turgid," but I think that is far too harsh, and that "discursive" would be a fairer description. Moreover, the bar for clarity in writing about R has now been raised so high by Hadley Wickham, Yihui Xie, Garrett Grolemund and J. J. Allaire (all of whom, not coincidentally work for RStudio), that it would be difficult for anyone of Chambers' generation to compete in that dimension. In the long ago, when when Chambers was minted, sentences WERE long and readers were able to extract meaning from multi-clause sentences without conscious effort. It was a very different time.There is too much good stuff in this book to list, so all I will say is that it is enjoyable and thought-provoking, and if you open it at random you will be entertained to such a degree that you may eventually find yourself reading it regularly as a form of displacement activity. For a user and teacher of R, the book has more charm than most novels.
I agree with most reviews here.  On one hand, it provides a lot of information about R that I cannot find anywhere else.  On the other hand, the presentation style is awkward.  I think the author could have done a better job organizing the information and explaining how R works.  Each chapter seems to stand alone and does not follow any particular orders.  The examples used are not particularly illuminating.  For example, there are some examples that the author used to split the work between R and Perl.  I don't quite understand why it was done that way and why it was discussed in the chapter of text processing.  The examples work and if you need to call Perl from R to do some work, it maybe worthwhile to read that section.  I give it a 3 star because it does provide some very useful information.
Okay. but certainly not a reference book.  For example, if you want to look up how DataFrames are manipulated, good luck.  Good book for learning, but get something like "R in a Nutshell" also.
Well, there is not a better way to understand any kind of processes than knowing the way it works. That is exactly the point of this book, and it is done in a didactic, uncomplicated way. You can find your own pathways to interact, program and get more and more from R. It will help with functions understanding and customizations, starting from the basic S language to R's specifics characteristics and goals. This book turns R easier than I have expected.
I don't know where else to find all the useful information in this book.  It was INVALUABLE as I tried to extend R with software packages, a must for anyone who wants to understand the R internals better.
More focus is on concepts which makes it suitable for advanced programmers
Another very good book by John Chambers.  He is one of the original authors of R, and his books are a great tool for understanding some of the intricacies in the language
Great background to R.
Not very useful for my purpose
I very much enjoyed the Audio Book - Data Science and the paperback Data Analytics ......  I would like to communicate with the author but there is no way to do that.  I wish Herbert Jones would provide some contact information
Organic sense of description and details within current scope of technology from theoretical and occurring scenarios based this book is very well presented.
Good book with nice topics.
Throughout my time reading Invisible Women, I frequently found myself questioning things. Whether the words shared were accurate (they were), whether the gender gap was as real as author Caroline Criado Perez was making it out to be (it is), and if women are truly putting up with as much inequality as was portrayed (they are).As a guy, it feels as though this book ought to be required reading for my fellow fellows. At multiple times during the read, I sat down with some close female friends, asking for their thoughts on certain passages, and the universal reaction was "yes, that's my everyday life." The feeling evoked after these conversations were both ones of enlightenment and frustration.I walk away after having read this book with an altered perspective and new context for what my friends and family tolerate each and every day. It is affecting, and has inspired change in how I personally approach my own priorities moving forward.Please make the time to add this book to the front of your queue!
The author has done prestigious amounts of research to see what's missing in most of the data sets that guide public policy, corporate decision making and medical practice. Time after time she found that women's perspectives are missing or that the data did not distinguish between men's women's patterns of behavior or health outcomes.  I appreciated her efforts to include data from around the world, while adding some personal stories of her life in the UK.  The book is quite dense with facts and figures (about 40% of the pages are actually footnotes), so I found myself skimming many paragraphs but her information and conclusions are certainly worthy of consideration.
TLDR: Average book suffers from exclusion of trans people.I read this book after the author was interviewed on the podcast 99% Invisible. While overall, this book was very interesting and clearly written, it suffers from lack of inclusion of LGBT (particularly trans) identities. I did not understand while reading how someone could write a whole book on the way that gender influences life and not even mention trans people. When I researched a bit further, I discovered that the author ascribes to views of trans exclusionary radical feminism. This fact makes me doubt many of the facts presented in this book and the conclusions that the author draws from it. (Review copy and pasted from goodreads)
I am a woman. This highlights things I already knew, and opens my eyes to things I did not know about just how male-biased our culture is.  The gaps in the data are some of the more key components. Partway through, I began to wish for a Mythbusters episode to test the (possible) myth that "crash test dummies based on the 50th percentile male body adequately test test survival of women with seat belts on,  in car crashes."  After reading the medical section, I have questions for my doctor about particular courses of treatment. This book asks questions, and notes where answers are unknown, because men are the "default human." Fascinating, scary, stunning, and important.  I am recommending this book to everyone I know.
There has been so much science lately regarding medical science only using men in trials.  Science NOW shows male data is far from perfect when it comes to a woman and many of us have died needlessly over the years.  This book will open your eyes and possibly save your life.  Have an honest conversation with your doctor.
I so badly wanted to enjoy this book. The subjects are interesting and thought provoking but the underlying tone of the author drove me nuts. I expected a scientific analysis of data bias, and while the information and references were there the bias from the author was too much. Words like â€œobviouslyâ€ shouldnâ€™t be used to portray facts.
I took about one week to slowly and thoroughly read this book, and it has opened my eyes to many, many different things. This book should be in high school curriculums, maybe then I'd never have to hear another guy tell me about how "Women just haven't contributed as much to human advancement as men." Women single handedly created humanity from seeds.And the author does not forget it. This book is absolutely riddled with facts and data, and even the damning lack of data in this context. Its thoughtfully put together to tell the story of 50% of the population that somehow gets treated like a minority. It's often witty, sad, angering, and most of all just depressing. I can't recommend it enough.That said, it was occasionally sprinkled with minor typos, run on sentences got hard to keep up with, and anecdotal evidence was regularly compounded with actual evidence to draw exaggerated conclusions (that were still, on the whole, quite right in their line of thinking.)Read this book if you are a woman or know a woman.
This book has a ton of great information but is not a great summer read. Too much information with little entertainment value. Recommend listening to this instead of reading.
This is one of the best feminist books Iâ€™ve ever read. Not only does it highlight the issues faced by our society in a very thoughtful and thoroughly research manner, but also it provides practical and evidence-based solutions. The author doesnâ€™t merely express frustration towards our society as it is today or place blame on anyone in particular: she does a fantastic job of demonstrating over and over again how debilitating it can be to exclude diverse voices from the conversation when managing the legal, financial, and socio-economic structures of a society. I couldnâ€™t recommend this book more, and I frankly recommend it to everyone.
This book opened my eyes in more ways than one being the stereotypical white, entitled male living in the United States. Caroline Criado-Perez thoroughly and expertly relays the facts and the DIRE and extrodinarily unjust and unfair situation faced by women in all cultures all over the world. Half of the population is bring denied just the very basic privileges, rights, and necessary data collection needed to improve society and the human race as a whole by designing everything from politics, humanitarian care, technology, etc to better suit and benefit women. This data gap is a heinous crime against over half the human race and everyone needs to take steps to counteract it and account for these missing data by asking women directly what they want and need. It's NOT a mystery. It's simply laziness, sexism, and tying to mistakenly and incorrectly cut economic costs. Women should not stand to have to be bullied, obsequious, and servile to a patriarchy. They should not have to become more like men to fit in. History does not need any more conformists to the overriding majority in power. If a woman is the kinder, more polite, and moral person in the room, then she deserves to be praised for it by both men and women even if differs from the standard male way of acting and conversing. Men need to do better NOW to be better listeners, be willing to accept women with power, and to never treat them as anything less than an equal human being. Is all this change too much to ask? I don't think so. I think it is the least we can ask and do to progress as a society and grow and prosper as a world that is designed for Women and Men. White heterosexual men have abused there time in power and failed to solve anything. Now it's time to let Women, minorities, and everyone else to rise and create a better world not only for them, but everyone. I am a Sourthern white heterosexual man and that is the stance I support with my writing, voice, and actions.
Iâ€™m a man, and I knew the problems with womenâ€™s data not being collected and womenâ€™s needs not being met in the world were bad, but not THIS bad. There are many great sources of data for these claims throughout the book; so many, in fact, that I started to feel overwhelmed after a while.But guys, we have to read sources like these and motivate ourselves to do better. The women in our lives deserve that, at the very least.
Should be required reading for...well, everyone, but especially for anyone wanting to run for political office, leading a company or organization, or otherwise in a position to make decisions that affect the lives of others. Invisible Women makes visible the systemic ways in which women's needs and women's work are ignored in everything from architecture to disaster relief to medicine with results that can be devestating not only for women but for everyone. Stop what you're doing and read now! Then start to make changes.
Read this book.  It is incredible.  Well written, thoroughly researched and documented, but still extremely readable.  Fascinating.  Shocking, and not.  If you are a woman, or if you care about women, read it.  Even if you think you already understand how different the world is for women, you will be surprised.
This is really an eye opening book backed by data (and ironically, by a lack of available data) to make a profound point. I came to this book believing myself already to be proactive about women's rights and issues, but learned that the problem runs so much deeper than I ever realized. And if I'm completely honest, I learned that I've been guilty of unconscious bias by simply not thinking through how certain things might affect women differently. I'm not a big book reviewer or recommender in general, but this important book is one I'm telling people in my world about. I highly recommend that you read this book if you want a better world for everyone.
The book spend an ENORMOUS amount of time talking about the trials and tribulations faced by women with children quite as if, the concept of female was entirely interchangeable with mother.  I got the impression that women who do not have children are quite as invisible to this author as she claims women on the whole are to most men.  When the author started advocating 12 month maternity leave for mother only I gave up on it.  What about those individuals with minor or moderate physical disabilities who would also benefit from parking closer to the building, and more paid time away from the job to tend to their very REAL healthcare needs, these women and men are clearly invisible to this author, I work in a hospital and from what I have observed the out of all the departments in the hospital, including outpatient surgery, the OB has the healthiest patients and one of the lowest mortality rates, so why does a two day stay in the OB garner a minimum of 6 weeks paid leave when end stage renal disease gives you four days a year tops before you have to be back to work? It sound great to say that women should have 12 months off to spend with their new children, but don't these children have fathers wouldn't the fathers like to spend some time with them as well? The author merrily ignores the co-workers of the new parents who are routinely "asked" to cancel vacations sacrifice time with their families and freinds and put their personal lives on hold to contribute to this state of maternal bliss, the childless, the elderly who are past childbearing and might want to start cutting back the hours a day they work or who are already partially retired are invisible non-entities in this model that elevates motherhood to goddess like status in the workplace.  This book has it's own bias similar to that which I have observed to often in the medical profession, when it says "woman" it means uterus, breasts, and children, and not the people who make up the female half of the population, some of whom will not have uteri, some of whom will not have breasts, and many of whom will not have young children.
Tons of facts but nothing boring about it. Most of the information should be in biology textbooks, on the news, and informing public policy in all areas of life. Instead much of it I am hearing for the first time as a middle aged woman. The disproportionate inconvenience, violence and death women face around the globe because women are not consulted or even considered in every area of life! We are not an anomaly or a resource to be exploited. We are an indespensible HALF of the population! Thank you for writing this book!
This book made me so angry that I had to put it down several times just so I could cool off. If you use data, collect data, or think that credible data can be trusted, this book will dissuade you of your illusions. Because so-called credible data kills women. It kills them in car crashes, in hospitals, after natural disasters, and after a winter snowfall. The author shows that gender-neutral data is actually blind to women, and women (and men) suffer the repercussions.
I just finished reading this book, and I'm blown away by how much I learned (and how much I enjoyed learning it). This is a great preparation for the fight ahead, And I truly believe this should be required reading for both men and women.Keep in mind, I don't even enjoy reading, but this book completely changed that.I have 3 books on my current queue, and probably going to read this one again after I'm done. Thank you, Caroline Criado-Perez.10/10.
I struggle to get into nonfiction but cannot put this book down. I'm about halfway through it and every chapter is blowing my mind. The writing is fast-paced and exciting and the content is fascinating!
Wonderfully documented and illustrated facts and figures!  Cannot believe how stupid male leaders, researchers, and planners are.  Women need to stand in statics!
I heard about this book on Roman Mars' podcast "99% Invisible" and bought this book as a female who works in User Experience Design, to improve my understanding of data and to hopefully improve my research skills. As someone with a science background, I needed to be convinced on the data and research first, before highly investing (which I am now questioning- because I knew it was written by a female?) and believing the logic.This book is extremely well researched and written, thoroughly logical, and written in a fashion that is not accusing of males (which often isolates those readers). Instead, it is inclusive and instructive.As someone who watched their mother and has personally been, the subject of verbal/emotional abuse, I was able to sympathise and empathise with many aspects of the book. I walked away pissed off in all the right ways.This book is eye-opening, especially for males with an open mind, but even for females who are apprehensive to the extremist qualities of feminism. I recommend this book to so many people on a daily basis now, that they must assume I am being paid for it. Everyone should be required to read this book.
This book is well-written, data-driven, and just plain good. Itâ€™s amazing to be able to call out all the ways the world - from planning to technology to medicine - is blind to women and their needs. Everyone in every industry should read this and think about what gaps exist and how to fill them. Iâ€™m so glad someone wrote this book.
Excellent opportunity to re learn how to better live in our world.  Begin by gathering all relevant information about one half of the world's population: women. To fully recognize that women and men are indeed different and have very different bodies and needs. By not gathering data about women the world of women and men is poorly served. This book should help all of us to be more alert to all humankind's problems and needs.
While you may think you know what data bias has done to the female condition, you probably have not experienced the breadth and depth of the research like this. Here it all is, in one place, with surprisingly clear analysis and the data to back it up, framed by science. Everyone needs to read this book.
Before this book, I knew the gender gap was real but I was not prepared for the reality of how insidious the problem actually is and how complicit I personally am in perpetuating the â€œnormsâ€ that allow the gap to continue. As Caroline Criado Perez says in the book, â€œBut when your big data is corrupted by big silences, the truths you get are half-truths, at best. And often, for women, they arenâ€™t true at all.â€ I must do better. We all must do better.
Exposes a huge number of societal issues that slant everything favorable, being studied, being told is ALL slanted towards males.
This is a book that everyone ought to read and many people will thoroughly enjoy. The topic makes you somewhat frustrated (this is definitely not a feel-good book) and somewhat angry. The data biases go way beyond what I initially expected. The only drawback I have is that it becomes a little preachy in politics and constantly, explicitly hits the same note over and over. At some point you just have to go "I get it, geez."
The topic was extremely interesting to me so I grabbed the book. I found it easy to read and well organized. It's an incredibly eye opening read that shines a light on the many ways in which the world does not account for women.
A well written book that exposed how much research is based on menâ€™s bodies as a â€œuniversalâ€ standard for research. We are NOT the same in so many ways, yet business and government remained biased.
Definitely a book I would recommend to anyone. Itâ€™s surprising (and unsettling) how weâ€™re failing to capture the necessary data about 50% of the population to design useful products, make informed decisions, and to save lives.Criado-Perez provides a myriad of examples where gender data gaps are impacting society. While some of her arguments felt like a bit of a stretch, her overall argument was certainly persuasive and eye-opening. A quick and interesting read, this is definitely a book I encourage others to read (repeating myself, I know) as it shines some light on a topic that is clearly needing more attention.
There is just so much in this book that totally blew my mind. This book should be required reading for policymakers, journalists, academics, and businesspeople - everyone, really. A crucially important work. As a bonus, it's also an engaging, extremely readable book as well. Can highly recommend.
Informative and well-researched. It stoked my frustration with how the world is designed to meet men's needs and overlooks women (half of the world's population!). This book really displays how deep these issues run in our society.
Just finished the first chapter and have a much better understanding of how women's needs are ignored to society's detriment.
What a great eye-opener and a wonderful reference book with helpful references and data about inequities in so many different settings. It covers the topic with depth and great range. A top read!
This book should be required reading for both men and women, and itâ€™s actually hard to know who needs it more.
I really enjoyed this book and it made me rethink some of my ingrained assumptions.  Everyone should read this book!
This book is a must read. I ordered a copy for my sister and have suggested it for everyone who has asked for 2020 reading recommendations. The author cites hundreds of studies from a myriad of disciplines and does so without feeling dry or robotic. If you care about womenâ€™s issues, if you have a wife, or a daughter, if you are a woman, heck if youâ€™ve ever met a woman, you need to read this book!
This is a must read for women. My friends and I have these conversations all the time concerning the issues brought up in this book.
This book should be a mandatory read for every leader, researcher, news reporter, and college professors around the planet!! The way in which facts about women are unnecessarily twisted needs to be known by the entire world. Thank you for your outstanding work!
Fabulous book. Everyone should read, especially young women. Information is power. Statistical bias affects all aspects of our lives.
Excellent use of stats to make a dispassionate scientific argument for feminism
This book was incredibly informative. Everyone should read it. Well-researched and compelling narrative that was easy to read. Really makes you think about how women are perceived in society. Cannot recommended this book enough!
Incredibly comprehensive analysis of the sex data gap. I've ordered multiple hard copies to give as gifts.
A brilliant collection of facts about how much work there is still to do, to provide an equitable world designed for both men and women. Every man & women should read this.
Enlightening, interesting read! The author did an excellent job researching the topics covered and I appreciated that she was not biased in many cases. I wish everyone had to read this book and try to make changes to fix the gendered norms that have literally led to women dying.
Need to read
I highly recommend reading this and learning about the bias and lack of data that exists. There are numerous references in the book as well.
Good for everyone to read
Already recommended to my sister because this is a must read for all women. Women rights are human rights, we are half of the population.
Easy to read, interesting and eye opening to how half the population is often unintentionally unaccounted for becasue of assumptions that collecting data on men is representative for all humans.
A really interesting read that goes deeper into topics I already knew a little bit about. Good detail and sources to back it all up.
Informative book that everyone should read!
Very eye opening.  I love this book and have given it to all my friends.
Outstanding, detailed, data based book blew me away. What an accomplishment. A necessary read for all humans. Should be included in all high schools.
This book is amazing! Very informative and easy read! Everyone should be required to read this book!
Book was in great condition. Look forward to reading it