Study notes for lectures in paediatric cardiology not only for paediatricians consist of four main parts: Paediatric propedeutics in paediatric cardiology, How to make a diagnosis in paediatric cardiology, Paediatric cardiology I and Paediatric cardiology II. Paediatric propedeutics is focused on the examination of a patient with suspicion on cardiac disease. How to make a diagnosis reviews the diagnostic methods in cardiology and their contribution to the diagnostic process. Paediatric cardiology I is focused on cardiac disease, mainly congenital heart defects, diagnosis of congenital heart defects and their treatment. Paediatric cardiology II covers issues of cardiomyopathies, inflammatory heart disease and arrhythmias.