Andrology, the science of the physiology, pathology and molecular biology of male reproduction, is a relatively new specialty that has become increasingly important with the advent of modern assisted reproductive techniques (ART). The Atlas of Clinical Andrology describes both normal and abnormal reproductive physiology, and summarizes recent research in the fields of endocrinology, immunoandrology, molecular andrology, and ART. Focusing on the cutting edge of recent knowledge and advances in clinical andrology, it incorporates the latest clinical research findings and makes them accessible to clinicians who need this essential information for the most effective application of assisted reproductive techniques.