Textbooks on the clinical use of radioisotopes, or nuclear medicine, as it is now called, are generally of three types. The first combines the authorship of a clinician and a physicist. These were among the first textbooks available. Secondly, as the field has grown more complex, the multiple-authored textbook, with as many as 35 authors, has appeared more recently. Finally, and this also appears to be a recent trend, a single clinician who has been involved in the clinical use of radioisotopes for many years and has gained experience in a broad range of medical diseases, writes a solo textbook. Clinical Nuclear Medicine, by Maynard, is an example of the third type. As one would expect, the book does not have the emphasis and content of the first two types. The explanation of nuclear phenomena and the fundamentals of radioisotopes is missing. And then, the individual topics as they relate