This is the absolute worst mathematics book that I have ever attempted to use. I would rather stick my head in a vise than try to learn anything from this book. Here are the four of the worst offenses:1. The book is not self-contained. One must constantly refer to other books to work the exercises. Write a complete book next time, jerk.2. If "mathy" were a word, it would describe this book. Where are the applications? You won't find anything practical here. Boring!3. How about some examples? That would be nice. Unfortunately, examples are few and far between. Think water in the desert.4. How about some organization? Nope, you won't find it in this book. It will lope along for several sections, then "Boom! Here are some random exercises. Good luck! I hope you've understood everything perfectly until now, cause this is comprehensive, baby!"This book is required for my class or otherwise I would throw it into a cesspool. When I'm finished with my class that's just what I will do.