Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Awful Rehash

The author gives vague advice, the "calm down", "be objective" cliche advice. If you don't believe me, I'm literally quoting him.Although the author tries to make his book seem original, as you can read, it's not merely about imagining yourself in positive circumstances, but mixed with the generic advice I mentioned. This is not something revolutionary, this is rehash. Save your money and go imagine yourself in a positive situation, you don't need to read hundreds of pages to do it, or spend $ on what to imagine.