Rating: 
Summary: Thank god
Review: I personally find all mathematics texts to be horrific thankfully my professor never made us use the book. He taught the course through hand outs of notes and lecture. I had to open this book only once (he usually just said do as much of the homework as you feel you need to, but one time he did decide to collect it.) I have to say it was a rather poor experience. Several of the problems had no even remotely clear examples.
Rating: 
Summary: Wish I could have picked 0 stars
Review: This book is of no help at all. This books seems to be written by the author to teach himself discrete math. I wrote a reveiew previously and Amazon did not put it up, maybe a bit more truth than they can handle to put up without offending the author. The book even beats Probability and Statistics in the uselessness category. The book does some simple examples that are nothing like the ones at the end of the chapter or the ones in the test bank they give to the instructors. It makes no sense to show me that 2+2=4 and then give me something like an integral at the end of the chapter. This book proves once again that someone with great knowledge on a topic can(usually is in most cases)be an absolute idiot in communicating it to normal people. I have written to the math department to stop using this book. It's just expensive t.p if you ask me. To the author please do not write anymore books, it's stealing mine and other peoples money and cheating us out of learning discrete math. If you write another one please don't publish it, I beg you. this one is a month after the last review and I hate the book more. It might has well have been written in some foreign language because it only confuses the hell out of me and the rest of the class.
Rating: 
Summary: College is dropping discrete math as a requirement
Review: And here's why. Discrete math is actually math proofs. Plain and simple. I recently dropped a discrete math class (for the second time) that used this book. The professor was fed up with it also! I don't pretend to fathom all there is in the book, though the section on the chinese remainder theorm is good. It has its points. But then maybe the subject matter just isn't gathered together cohesively enough to make a class of it. Check your local colleges. Do they offer discrete math? My opinion is that this stuff is better scattered over several different classes on algorithms, math proofs and digital logic.
Rating:
Summary: Incomprehensible
Review: This book fails in so many ways it is hard to know where to begin. As someone who excels in math, but new to the subject of discrete mathematics, I am finding that Rosen is not able to present material in such a way that facilitates learning. He presents disjointed examples, makes huge assumptions, leaves out steps -- creating such a mess that even an intelligent reader can fail to learn anything from his work. I am dropping the class until it's offered again with a different textbook.
Rating: 
Summary: The best Discrete Math book, but...
Review: This is probably the best Discrete Math book that I have found. It's very thorough and covers all the topics of Discrete Mathematics that one would expect it to. There is a proof for most major theorems and numerous examples.The "but..." is that this book, like almost every math text that I have ever come across, is NOT very readable and gets EXTREMELY boring at parts. I would say that math books can only be so interesting, but I have come across one math text that I honestly enjoyed from beginning to end: "Linear Algebra and Its Applications," by Lay. That book is proof that it can be done, but this book sure isn't. Also, one last word of advise... I found that the student solutions guide that was written for this text is a must have. It has the worked out solutions to many of the books problems, which is a big help considering that Discrete Math is all about how you found the answer.
Rating:
Summary: Ugh...
Review: **From a student's perspective** I still have yet to find a decently written math book and this book is no exception. Most of Rosen's examples were extremely confusing and many (usually his proofs) contained severe jumps in logic. It almost seemed like he assumed he knew how he got to where he jumped to. However, since I am a novice at Discrete Math, I could not. I did find, however, that the book was a little less confusing if I read the material after my professor lectured over it. Trying to read it beforehand was almost hopeless, for me at least. There has to be a book that is more clear than this one. I just hope other students have better luck with this book than I did.
Rating:
Summary: worst mathematics textbook I've even encountered
Review: Rosen claims the book is error-free, yet my copy was riddled with nonsensical errors. His examples & discussions are mostly trivial. There are some very challenging problems in the exercises that went beyond the scope of the presented material, though, and these were the assigned problems. I did not know of one student who did not despise this text, as well as the course, wholeheartedly. People in the library would shout out loud, "I HATE THIS BOOK. I HATE THIS COURSE!" I have never encountered such distaste for any other book or course in my academic career. I do not understand why this book is used; why not just use Knuth instead--he is a far superior communicator.
Rating:
Summary: Poor text to say the least
Review: I can't think of much to say in defense of this text except a great many universities use it. As a C.S. student I was expected to buy this and about of 3/4 of the way through the course I really started to hate it. If you ever wondered why students are averse to discrete math and see little value or meaning in it then this book can help clear that up. This uninspired and obfuscated text makes trying to learn even the basics of discrete math a real chore. Poor examples abound in all chapters with many skipped steps and cryptic references to previous examples and supposed explanations. Luckily I had a teacher who supplemented most of the subject matter with her own notes. I estimate I spent an additional half a semester of contact time with the T.A. and teacher because of the text, I'm very suprised to see this book above an average of two stars. Oh and the web site that supports the text has one question on th b.b. that was answered by the author, they routinely censor out the posts if they reflect on the text poorly.
Rating:
Summary: There must be better books.
Review: I'm a CIS student at the University of Florida, and use this book for my Discrete Structures course. Fortunately my instructor heavily supplements the text with thorough lectures, because this is one of the most obtuse and incomplete texts I've yet encountered. The author has the habit of introducing new material in the homework problems-- for example, nowhere in the book will you learn how to determine if n-factorial is big-O of a function, but it's a homework question, and there are many like that.
Rating:
Summary: Overall a solid text for an intoduction to discrete math
Review: As a student in the CS curriculum at the Univ. of Illinois @ Urbana-Champaign we are required to use this book. This turned out to be a good thing. We went through a large portion in our intro course and finished it up in another course, and it provided good examples and explanations. Although the course you may take might not correspond perfectly with this text, it is good overall at touching on the important concepts and giving just enough examples to facilitate the learning of material.
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