The book provides useful information on some of the most common cases tested in ABIM boards, in the following: General - (Infectious disease, Oncology, Hematology, Allergy and Immunology) Regional - (Cardiology, Pulmonary, Nephrology, Endocrinology, Gastroenterology, Neurology, Rheumatology, Dermatology) Other Areas - (General Internal Medicine, Reproductive health, Geriatrics, Psychiatry). It can be useful for anyone interested in the field of Medicine.