This document provides guidelines for the diagnosis and treatment of heart failure, including recommendations on tests such as transthoracic echocardiography, brain natriuretic peptide levels, and cardiac imaging. It discusses the types of heart failure with preserved or reduced ejection fraction. The guidelines also cover medical therapies like angiotensin converting enzyme inhibitors, mineralocorticoid antagonists, angiotensin receptor neprilysin inhibitors, and devices for cardiac resynchronization or left ventricular assistance. Optimum medical therapy is emphasized.