most technically challenging and prognostically relevant topics for cardiologists. LM carries blood to 70-80% of the normal heart, and diseases affecting this coronary segment are a common cardiac condition. Beginning in the sixties, management was exclusively within the domain of cardiac surgeons, and recent dramatic changes in percutaneous techniques have led to huge improvements but have also brought significant surgical challenges. In the book, top cardiac surgeons describe current and future operative techniques, while leading also investigates the recently released European Society of Cardiology Guidelines in detail. Featuring the latest scientific studies with long-term follow up, and detailed descriptions of the techniques used, thisbook provides comprehensive guidance for any clinician, and is a valuable resource for cardiologists, interventional cardiologists, cardiac surgeons and internists. This is an open access book.