Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointing

There was a lot of hype about this book and that is why I purchased it. Through the years I have heard it was a great book. As I read it I found myself wanting to throw the book away. I found the writing to be mediocre and the topic to be very challenging to believe it was reality. After I finished the book I desperately want my money back and the time I wasted reading it.