While paediatric cardiology may be a small specialty, it is important to note that congenital heart disease ranks as the most prevalent congenital condition globally. As a result, cardiac problems form a significant part of the workload of many general paediatricians, neonatologists, and other paediatric specialists. Beyond congenital heart conditions, acquired heart diseases are frequently encountered in general practice. The management of heart-related conditions can often be complex, leading to apprehension for junior doctors during their rotations in this field. The Oxford Specialist Handbook of Paediatric Cardiology aims to address this challenge and provides essential insights into the diagnosis, management, and care of young patients with heart conditions. This comprehensive guide to paediatric cardiology takes a systematic approach to heart lesions which will form a major part of the book, offering quick two-page refreshers for clinicians. It covers common heart surgeries, diagnostic frameworks, major investigations, and subspecialties like interventional cardiology, fetal cardiology, and more. It also addresses drug therapy, emergencies, psychology, and palliative care. This book includes everything that a junior doctor needs when starting in the speciality and will also be a valuable reference guide for more senior trainees and consultants.