Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not even a textbook

Most textbooks are designed to teach and instruct in a detailed and straight forward manner. This book is unable to do either. The language it is written in is very confusing, it seems that most of the book is written as an essay, using big fancy words which are totally unnecessary. The message is not easy to discern. The book does not provide good instruction. In fact, THERE IS NOT EVEN A GLOSSARY, and most of the words aren't even defined in context.This is pathetic, I will have to buy another supplement in hopes of doing well on the AP exam, because this book will be unable to get me prepared. Instructors, please stay away from this book. Students, good luck trying to understand it.