Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This author is clearly jealous. The claims are nonsense.

This book is such a stretch and ironically a deception in itself. The points made have no substance and are erroneous in conclusions. I don't know what is driving these ideas, other than jealousy, riding the coat tails of a popular book by (failingly) trying to undermine it. Or just hate? Sad.