This book emphasizes the clinical epidemiology of chronic liver diseases with a specific focus on the methodology of the discussed studies. The whole spectrum of liver diseases is covered, from chronic hepatitis B and C, to hepatocellular carcinoma, alcoholic and non-alcoholic fatty liver diseases and autoimmune and cholestatic liver diseases. Readers will find the most up-to-date information on clinical epidemiology of hepatology, and will also be able to learn about important methodology and biostatistics information. Each chapter contains a summary table at the end of each chapter that highlights the most relevant landmark studies, their main outcomes and the unique features of the methodology. The book will appeal to both practicing clinicians as well as clinical research investigators. In addition, this would likely be of interest to medical school or public health school students to learn about hepatology epidemiology, but also some specific fundamentals of clinical research and clinical epidemiology. .