The concept of a comprehensive textbook on endocrine imaging is an interesting one. As James Thrall states in the foreward, most components of endocrine imaging have been “adopted by specialists with interests in different anatomic regions or techniques but not with a broad or comprehensive interest or expertise in the endocrine system”. As a unifying text this book in general works well. However, the authors already having adopted this very broad remit seem to have made their task even more difficult; more than 100 pages at the beginning to the book are devoted to the physics and techniques (including quality assurance) of the imaging methods used in endocrine imaging.