Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This book is awful!

This book was a sucker buy. I am getting my money back! Don't waste your money or time on him. I am completely into natural cures.... but he doesn't give you any. And not only that, but his section on "effortlessly" losing weight... looks like the most difficult way I have ever seen! 15 colonics in 15 days? 21 day juice fasts? and 20 some odd more ideas.. only a few of them are feasible. Save your money. Buy something else.