One of the most reliable author names in juvenile non-fiction (Moths, Earthworms, etc.) turns to yet another common but always popular subject in nature. The best parts of the book are the general explanations of skin shedding, breeding, growth and shared characteristics (scales, fangs, movement). For these, the drawings are large, clear, exact and, where necessary, labelled cross-sections. However, the longest part of the book is given over to close descriptions of the characteristics most often encountered in harmless and poisonous snakes. For these the drawings are good looking, but since they are all in black and white, not really as helpful for identification as they might have been. There is a section on snakebite directing the reader to send for the New York Zoological Society's pamphlet and a chapter with hints on snake handling.