For readers who would like a crash course in coronary artery disease, this site from the Khan Academy is a great option. Taught in 12- to 15-minute sections, with the precision and simplicity of Salman Khan, the videos cover topics in order of complexity. The lessons start with What is coronary artery disease?, explaining the way the heart works and the nature of plaques and plaque build up. From there, Kahn takes readers on a journey through risk factors, atherosclerosis, heart attacks, healing after a heart attack, and the complications that one might expect after a heart attack. Readers are welcome to continue their medical education, moving on to a study of the rest of the circulatory system.