Dr. Riesman is one of the foremost teachers and practitioners of internal medicine in this country. His pupils are to be found everywhere and all have the most profound respect and admiration for him. He has been a prodigious worker and prolific writer. This collection of essays reveals him as one who diversified his attention not alone in the broad field of internal medicine but also in medical history, archeology, astronomy and other equally interesting subjects. To the physician the medical essays should be particularly interesting, as they cover a period of forty years. Preeminently Dr. Riesman is primarily a thorough clinician. One is reminded of reading the description of diseases by the masters in the premechanized era of medicine. He emphasizes the importance of accurate history taking, the necessary and skilful use of one's fingers and eyes, and a careful correlation of the information gathered by these various measures.