This book is published for doctors, especially juniors, working in all specialties of cardiology (clinical, noninvasive, and invasive). It is an up-to-date, practical, and user-friendly book that contains almost all the information needed by cardiologists in their day-to-day clinical work. It derives its contents from the latest international cardiology guidelines and practices and the most recent literature in the specialization. I am sure cardiologists of all different experience levels will find it useful.