"Doctor Rodionov's Academy" is a series of 5 books written specifically for ordinary people without medical education, each containing valuable information directly from a doctor of the highest qualification category. Thanks to the book “How to Live Without a Heart Attack and Stroke,” you learned how to properly treat hypertension. “Heart and Vascular Health” eliminated the fear of cholesterol plaques and delayed a face-to-face meeting with a cardiologist. In his new book, Dr. Rodionov explained in accessible words what an ECG is and what diseases can be recognized with its help. You will learn everything about heart failure, arrhythmias, angina pectoris, myocardial infarction, ischemia, cardiomyopathies. Simply find the diagnosis in the alphabetical index and open the indicated page. Now you can independently understand the conclusions of the ECG and the phrases found in them such as sinus arrhythmia or incomplete blockade of the right bundle branch. Many readers will learn with a sigh of relief that changes in their ECG are a variant of the norm and do not require treatment. Well, those who take pills “for the heart” will do an important homework: they will sort out the home first aid kit and understand the meaning of using each drug. Read, analyze and be healthy!