Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Marvelous!

This book screamed at me from the shelf. So I swallowed my pride, picked it up and bought it. I opened this book thinking it was too good to be true. But Camy Baker doesn't just teach you some skills for being popular, she tells you how to be a better person. This is a great book of self improvement, as well as popularity.