Instruct: Classify Amazon reviews into positive or negative sentiment
Query: awful! If I could give it 0 stars I would!!

I had to use this book for 2 semesters. Well, "use" is not even correct, since I barely looked at it; that's how good it was. I tried reading through it for the first semester, but it was no use. There's no cohesiveness to it at all, and it's very frustrating that there isn't a working index. I gave up trying to make any sense out it. Our professor used it for his outlines for his lectures and took pictures and graphs out of it. Other than that, didn't really use it.Next semester, my professor used the problems at the end of each chapter to prepare for quizzes and tests, and that was about it.I haven't read any more of the book since the first couple weeks of the first semester. Did I need it to succeed in class? No.It's a terrible book, and I am glad that I will never need to use it again.I'm so glad I didn't pay full price for this book. Amazon marketplace for the win!