Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Really bad

This book is totally non-comprehensive and seems actually very sophomoric for a graduate course. The author gets lazy and decides she isn't going to cover some important topics b/c she doesn't feel like it. Some of the chapters are very introductory. This is seriously the worst book I've had in both my u-grad and grad career and I'm annoyed I had to pay for it. I'm totally selling this piece of junk after I'm through with my class.