What should a book on cardiac diseases tell us about? We are not cardiologists in most instances, nor ordinary patients preparing to be catheterized. This book tries to explain to the average medical reader about the causes, diagnostic advances, and therapeutic opportunities in the context of cardiac diseases in the modern era. The topics covered in this project will enlighten research pathways while rendering clinicians practical solutions to everyday problems in recognition and management of these entities. In brief, students, nurses, paramedical personnel, researchers, junior doctors, and experienced practitioners will benefit from this book when translating theory into practice.