I bought this book based on the recommendations of other amazon.com reviewers. This book presents the material as clearly and concisely as it could be presented. The exercises are very helpful and thoroughly explained. I simply haven't seen another book which explains the concepts covered as clearly. I would note that the book is definitely written at an adult reading level. While it covers the material thoroughly, it doesn't spoon-feed the user, which is exactly what I was looking for. I would like to thank all of the other reviwers who guided me to this book.