In a relatively short period of time two-dimensional echo cardiography has become the most important non-invasive diagnostic tool in the daily practice of a pediatric cardiologist who predominantly deals with congenital structural heart disease in neonates and infants. Consequently, one-dimensional M-mode echocardiography has lost most of its importance particularly in this field. Therefore, an atlas showing exclusively two-dimensional echocardiograms of the most common and some less frequently occurring malformations appeared to be a useful addition to the existing literature. The...