Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This book really covers the subject

Barry Glassner really knows what he is talking about. I lost 32 pounds eating Irish potatoes!!! I also avoid organic food like the plague. I do know something that he doesn't mention. It costs as much to get a new pesticide on the market and takes at least as long as it does to get a new medicine on the market. Therefore any agriculturalists who are still in business use pesticides as little as possible because every time they use one it subtracts from their bottom line.I also think he has a very valid point about diets causing obesity. At least the diets that try to forbid you from eating certain foods. When I started losing weight I wasn't forbiding myself anything. All I was doing was trying to eat more of the fruits, vegetables and whole grains which are healthy for you and trying not to stuff myself.