Instruct: Classify an Amazon review into positive or negative sentiment.
Query: What a rip off

This book is not only extrememly overpriced, but it is also poorly written, full of typos, and the graphs, charts, pictures etc. aren't very useful or relevant. Unfortunately, it was a required textbook for a college course I took a couple of semesters ago. I strongly advised the instructor to find a different text that was better written and lower priced.