Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Some interesting ideas but not a pleasure to read

Buy this book used or you'll regret it.This is poorly written book that requires a lot of work to read and the payoff is slim. There are some interesting facts and ideas but I'm not sure they were worth the effort. A number of ideas are presented in "male vs female" competition of the sexes in different animals but those notions are better laid out elsewhere on the internet today.