The profiles are edited transcripts of interviews videotaped between 1996 and 2004. They tell of the development of new techniques such as the "blue baby operation," the first heart-lung machine, the first artificial heart valve, and the first coronary bypass operation. They also tell the unusual life stories of the surgeons and allude to professional and institutional rivalries. A particularly valuable part of the book is the author's brief history of cardiac surgery, designed to orient the reader for reading the profiles that follow.