Although we may read about fingernail and toenail disorders in standard dermatologic texts and a few other places, no source that I know presents the subject with such clear and congenial style—an attribute that makes this small book interesting to read from cover to cover, as well as an excellent reference source. The author achieves this lucidity, not only by his style, but by sacrificing most of the long descriptive words of Greek and Latin origin that have so cluttered the nomenclature, by omitting many possible bibliographic references, and by resisting the usual temptation for uncritical repetitions from the literature. The practical usefulness of a book like this derives partly from the number and quality of its photographs, since often a puzzled clinician would simply riffle the pages to find a picture that corresponds to the clinical problem in his examining room. The 126 black-and-white illustrations and four color plates