After the enthusiastic reception of the two previous editions of the book, the favorable comments and the substantial help it provided to both students in the A' Preparatory Pathological Clinic and doctors of various specialties who attended some electrocardiography courses in the form of postgraduate scenarios, the obligation to rewrite and enrich the book was created, with new more illustrative ECG diagrams and graphical representations, as well as additional material for better understanding of certain chapters.

It is believed that the author, with his experience, teaching ability, and knowledge, provides the Greek literature with a textbook that is equivalent, if not better, than the best foreign ones.