Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Surveillance Guru

My coworker and I sat on the floor at the library, read this book in about 15 minutes, and were overwhelmed by the wealth of knowledge Bob Bruno provides. Our only regret is that we cannot rate this book at 10 stars (AT LEAST)!!!!!Bob Bruno is the PREMIER private investigator, and should be lauded without pause for the genius of his work. The principles his book has taught us will remain with us throughout our lives.Bruno unleashes page after page of his expert knowledge in this classic example of P.I. turned Educator.This is Bob Bruno's Magnum Opus.Bob, wherever you are, we thank you.