The modern era of radionuclide imaging and therapy is well into its seventh decade. During this era, many national and international textbooks have been published in an attempt to educate not only the practitioners of our medical discipline, but also referring physicians and medical students. Some of the more recent large multic- tural texts, such as those by Ell and Ghambir, Sandler et al. and Henkin et al., provide us with very comprehensive reference sources while some of the smaller texts totally writtenbytwo or threeindividuals, e. g. Mettler &Guiberteauand Ziessman, O M- ley & Thrall,...