Cardiomyopathy is one of the most frequent causes of heart failure. It is often associated with inadequate heart pumping or other heart function abnormalities. There are many different causes of the disease, e.g. other diseases, alcoholism, high blood pressure, viral infections; therefore many different kinds of cardiomyopathies exist, belonging to five main types of CM: Dilated CM, Hypertrophic CM, Restrictive CM, Right Ventricular CM, Nonclassifiable CM. This volume focuses on inflammatory CM, belonging to the Dilated Cardiomyopathies (DCMi). It covers epidemiology/prognosis, pathology, immunology, diagnosis and treatment strategies.