and its consequences. Depending on the "authority" that one reads, there is still some controversy as to which patients are candidates for coronary artery surgery. This monograph on the prac­ tice of coronary artery bypass surgery, therefore, comes as a welcome boon to cardiologists, surgeons, internists, and general practitioners who must consider referring their patients for such surgery. It presents a balanced and reasonable picture of the overall subject, in addition to containing important information on such topics as opera­ tive technique and economic impact. Dr. Miller has done an outstand­ ing job in bringing together in one text the important considerations related to the evaluation of patients, the natural history of coronary artery disease and the benefits and problems associated with bypass surgery.