It is fair to say that most physicians, unless they are specialists in dermatology, are weaker in their knowledge of skin diseases than in any other phase of medicine. This interesting little book of Dr. Behrman's tries to give help by pointing out and describing the dermatologic phases of various diseases. The subject is taken up in sections alphabetically arranged, such as acanthosis nigricans, acrocyanosis, acromegaly, acrosclerosis, Addison's disease and so on down the list. Under each heading the dermatologic implications are described. There are numerous good illustrations, and the reviewer considers this a most useful compendium.