Each new edition of the American Public Health Association manual on Control of Communicable Diseases in Man is an event in the public health world. The eighth edition has been prepared by a committee of fifteen outstanding authorities in the field, with the collaboration of the principal American and British health organizations, which designated representatives to consult with the committee in order to reach common agreement as to facts and opinions. The aim is to provide an informative text for easy reference by public health workers, professionals in the medical field, military physicians, and health workers stationed in foreign countries. The format and its pocket-size add to its usefulness; it does not of course substitute for standard textbooks. While it largely expresses American practices and ideas, it has been translated into French, German, Spanish, Portuguese, Serbo-Croatian, Japanese, Chinese, Thai, and Finnish, which should give it a wider usefulness.