The guidelines, obtained by consensus of European representatives, compile recommendations for resuscitation suitable for European healthcare professionals trained in resuscitation techniques. These updated guidelines provide specific instructions for cardiopulmonary resuscitation in both basic and advanced life support in adults, children, and neonates, with major changes in the basic life support algorithms. They address equally further topics such as the use of automated external defibrillators, electrical therapies, initial management of acute coronary syndromes, cardiac arrest in special circumstances, the ethics of resuscitation and end-of-life decisions, and principles of training in resuscitation.