Over the past 20 years, the use of transesophageal echocardiography (TEE) has dramatically increased as the benefits of this imaging approach have been recognized. Initially used primarily in the operating room by anesthesiologists, the technique has evolved into a diagnostic and monitoring modality frequently used by cardiologists, anesthesiologists and surgeons in patients with heart disease, both in the outpatient and inpatient setting. Accompanying this growth, a number of textbooks have been written about TEE, primarily in the adult setting, and focusing almost exclusively on "adult" forms of heart disease (i.e coronary artery, aortic and valvular heart disease, and cardiomyopathy). During the past decade, refinements in TEE probe technology have also enabled application of this technique for the evaluation of congenital and acquired heart disease in infants and children mainly as an intraoperative tool, and employed primarily by pediatric cardiologists and anesthesiologists. However, comparatively little educational material (in the form of textbooks or manuals) is available regarding the use of TEE in congenital heart disease (CHD).