This practice-oriented book provides a comprehensive and up-to-date review of the history, surgical anatomy, etiology, pathogenesis, clinical presentation, and treatment of primary, secondary, and tertiary hyperparathyroidism. The coverage is wide ranging, encompassing, for example, innovations in both medical and surgical treatment, current indications for parathyroidectomy, the role and performance of minimally invasive surgery, the value of intraoperative parathyroid hormone monitoring, and guidance on reoperations. Individual chapters are devoted to particular conditions and disease settings, including multiple endocrine neoplasia types 1 and 2 and parathyroid carcinoma, with provision of information on genetic testing, clinical manifestations, and therapy. All aspects of secondary hyperparathyroidism in predialysis and dialysis patients are discussed. The book is endorsed by the Italian Society of Surgery. It will be of great value for endocrine surgeons and endocrinologists and will also be of interest to specialists in internal medicine, nephrologists, urologists, gynecologists, and radiologists.