Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not what I expected...

Call me manipulative, but you can't accuse this book of the same quality. I was expecting something telling me how to do some down-and-dirty "social engineering"...but...alas, no. It did give me a few tips/tricks that were cool, but it was hokey ... on how to make people feel better and garbage like that. Nothing to make someone insecure about their looks all day...or how to make someone trust you with a few carefully placed words. It doesn't even cover simple things like surveying people, and how to determine body language. Not worth the buy, AT ALL. If you can borrow it from a friend, it's fun for a couple minutes.