Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: This is the worst textbook I have ever seen.

I just read the reviews and I can not understand why some people have given the book more than a single star let alone like it. It is by far the worst textbook I have ever used. I am baffled that it made it to print. I can only guess that the people who did like it must already know stat mech and have no appreciation for the omissions that make the book completely ineffective for learning. I agree with every negative comment made about this book. It is horrific.