Heart failure refers to the inability of the body to pump sufficient blood to meet the body's requirements. Shortness of breath, fatigue and leg swelling are some of its common symptoms. A few of the causes of heart failure include coronary artery disease, high blood pressure, valvular heart disease, excess alcohol use, etc. It can be diagnosed through echocardiography, blood tests, angiography and other physical findings. Its treatment depends on the severity of the condition. Treatment improves the symptoms and prevents the progression. Recommended drugs include aldosterone antagonists, angiotensin converting enzyme inhibitors, beta blockers, diuretics and pacemaker. Lifestyle changes such as physical exercise, dietary changes and stopping smoking also help in the management of heart failure. This book explores all the important aspects of heart failure in the present day scenario. It presents researches and studies performed by experts across the globe. The book will serve as a valuable source of reference for graduate and postgraduate students.