Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not a self help book at all.

I read the introduction of the book online and thought it might be a good self help book to understand anger. However, the book gave a lot of exercises with abstract questions and no explanations or further readings. I guess unless if the person is already in somekind of anger management workshop or have a therapist to guide her, it is not a useful book at all. It's actually quite a frustrating experience.