This book provides concise, practical, and up-to-date information on congenital and acquired heart disease in children. Thirty-eight congenital cardiovascular malformations, 9 acquired cardiovascular conditions, physiology unique to congenital heart disease, 10 common postoperative issues, and topical issues including COVID-19 and the heart and lymphatic disorders and interventions in congenital heart patients are included. Each chapter is in the reader-friendly format, covering aetiology, pathophysiology, clinical manifestations, investigations, and management approach of congenital and paediatric acquired heart disease by incorporation of coloured figures, tables, and boxes. It will equip medical undergraduates and trainees in paediatric cardiology, cardiac surgery, cardiac intensive care, and cardiac nursing staff with up-to-date knowledge and practical skills to manage and to care for children with congenital and acquired heart disease.