Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This man is a fraud

I loved this book when I read it. Then I was shocked to discover that the author is a fraud. Please do not buy his book. (He takes the profits for himself, not for his charity; he even takes a lot of the charity's money for himself.) Get a copy from the library and read it; then read "Three Cups of Deceit" by Jon Krakauer. As I read Krakauer's book I became more and more stunned at the audacity of Mortenson. It is clear what the facts are. Read both books and decide for yourself.