Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not A Good Book

This book does not help the student learn. It wants them to "discover" definitons and methods by looking at pictures and diagrams. This theory fails miserably. I find it very difficult to discover how to construct things and definitons just by looking at pictures. Conjectures with blanks, no glossary, and an unhelpful Helpful Hints Sections add on to the trouble. DO NOT GET THIS BOOK FOR YOURSELF OR FOR YOUR CLASS.