Heart failure (HF), often referred to as cardiac failure or congestive heart failure (CHP), occurs when the heart is unable to pump sufficiently to maintain blood flow to meet the body’s needs. A lot of health conditions contribute to heart failure. These include coronary artery disease, myocardial infarction also known as heart attack, high blood pressure, valvular heart disease, alcoholism, cardiomyopathy and atrial fibrillation. These heart conditions contribute to heart failure by altering either the anatomy or physiology of the heart. Heart failure is a common, costly, and potentially fatal condition. About 40 million people were affected globally in 2015. In developed countries, around 2% of adults have heart failure and in those over the age of 65, this increases to 6-10%. In the year after diagnosis, the risk of death is about 35% after which it decreases to below 10%. Five percent of emergency hospital admissions in the United Kingdom is associated with this disease. The book “HEART FAILURE PREVENTION & TREATMENT”, as the name implies, discusses this health condition in details. It begins with a detailed explanation of the anatomy and physiology of the cardiovascular system (comprising the heart and the blood vessels), before proceeding to the disease condition. This will enable the reader to have a firm grasp of heart failure. HEART FAILURE PREVENTION & TREATMENT is written in simple English, with detailed explanation of medical terms to allow for easy comprehension by readers in the non-medical field. We hope that our readers will find this book a very useful tool in the war against the menace of cardiac failure.