In dealing with the subject of obesity, the authors of this book say, in essence, "don't eat so much!" They point out the various causes that are advanced to explain overweight and then show that, with exceedingly rare exceptions, all forms of overweight respond in a characteristic manner to low calory diets. The very few contraindications to weight reduction are considered. Reduction diets and the method of calculating them are discussed adequately. Accessory methods, such as the use of drugs that elevate the metabolism and drugs that discourage the appetite, are mentioned, usually to be condemned. This is a valuable practical handbook to guide the physician in dealing with his overweight patients.