Coronary heart disease (CHD) is the single most common cause of death globally. However, with falling CHD mortality rates, an increasingnumber of people live with CHD and may need support to manage their symptoms and improve prognosis. Cardiac rehabilitation is acomplex multifaceted intervention which aims to improve the health outcomes of people with CHD. Cardiac rehabilitation consists of threecore modalities: education, exercise training and psychological support. This is an update of a Cochrane systematic review previouslypublished in 2011, which aims to investigate the specific impact of the educational component of cardiac rehabilitation.