This document contains diagrams of various congenital heart defects including atrial septal defect (ASD), ventricular septal defect (VSD), patent ductus arteriosus (PDA), aortic stenosis, pulmonary stenosis, coarctation of the aorta, and more complex defects such as tetralogy of Fallot and tricuspid atresia. For each defect, a diagram is shown labeling the relevant cardiac chambers, vessels, and abnormalities. Brief descriptions are provided of associated clinical findings, investigations, and surgical specimens for some of the defects.