This practical book aims to cover the whole scope of clinical endocrinology, including both common and selected rare but important diseases, with an emphasis on practical clinical management. A number of different questions and problems in clinical routine are discussed in this book in an unconventional format. Each topic begins with the presentation of a typical clinical case, and then the topic is approached in a question and answer format linked to the clinical case presented, highlighting the most important questions in diagnosis, differential diagnosis and therapy. Numerous figures and tables are included to help understanding. The book is chiefly intended for doctors in training (preparing for boarding exam in endocrinology or internal medicine), but also for established clinicians who want to broaden or refresh their skills. University students of medicine can also find this book interesting.