Instruct: Classify a given review into positive or negative sentiment.
Query: Poor research; appeals to emotions rather than intellect

This book presents a very weak argument that is supported with "facts" that turn out to actually be opinions because they are unsupported scientifically. "Professional Aggie" has written an excellent review on this book, in fact, there is a long discussion about it here on Amazon presenting both sides of the issue. It is worth a read and you will get more out of the discussion on Amazon than out of reading the book...you'll save money, too.