Differential diagnosis texts for the MRCP can overload candidates with detailed information, making revision seem difficult and overwhelming. In contrast, this book avoids exhaustive lists of often rare causes and concentrates instead on a maximum of five of the most common causes in terms of prevalence for each scenario, making revision more structured and manageable. The book includes diagnostic hints – clinical or lab clues that point towards a specific diagnosis – and a unique chapter on key ECG causes and features. Although primarily intended for MRCP Part I & II and FCPS (Pakistan) Part II candidates, this book will also be useful for undergraduate students preparing for finals.