This book is a comprehensive guide to endocrinology for clinicians and trainees. Beginning with an overview of the endocrine system, the text then describes the chemistry and mechanism of hormones and their clinical significance. The following sections discuss the role of different organs in the endocrine system, including glands, the pancreas, and gonads. The next chapters cover hormones in other organs such as the gastrointestinal tract, liver, kidney and heart. The book concludes with discussion on endocrine tumours and growth factors.