Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not that Great

I bought this in an airport and read it on a plane. It is not a great book. As another reviewer said, it tells you to work hard, pretty much tells you that if you want to succeed you will have no life. I subscribe to the 80/20 Principle and think Richard Koch's 80/20 Principle and the 80/20 Individual will take you further.