Non-alcoholic fatty liver disease (NAFLD) is a common cause of elevated liver enzymes and chronic liver disease in Western countries. NAFLD is characterized by elevated liver enzymes in the absence of alcohol consumption and secondary causes of liver disease. It is an independent predictor of future risk of cardiovascular diseases type 2 diabetes and metabolic syndrome (hypertension abdominal obesity dyslipidemia glucose intolerance). This book is a quick reference guide for medical students and professionals about NAFLD. Readers will find a summary of epidemiology clinical features diagnosis imaging techniques histopathology and disease management. The book also presents information about NAFLD linked with hepatocellular carcinoma and guidelines for treating NAFLD in pediatric patients. Each chapter presents information in a simple structured manner making this text an ideal handbook for supplementing hepatology modules in medical curricula.