The application was created for medical students or even practicing physicians, paramedics, doctors. With the help of simple examples and testing, you can quickly learn how to correctly interpret the data on an electrocardiogram or consolidate the skills you already have. Functionality of the application includes: - Description of pathologies with examples of cardiograms and explanations. -Cardiac conduction system structure. - Rules for electrocardiogram interpretation. - Tests in which you can measure your knowledge and consolidate it in your memory.