content: Considering that this book is the 10th edition, I would not want to see what the previous editions looked like. This book is full of mistakes, both editorial and technical.Don't buy this book unless you absolutely have to for a class. If you do have to, look for the best price on a used book, don't bother to buy a new one, you will NOT want to keep it.This book has some of the worst examples I have ever seen. The examples are so convoluted that there usually isn't a straight forward answer to most of the problems. This has been verified by looking in the instructors version of the book.