This textbook offers a state-of-the-art description of the pathophysiology, diagnosis and treatment of gastroesophageal reflux disease (GERD). Although GERD is one of the most common gastrointestinal disorders, its diagnosis and management are often challenging. Expert physicians provide an evidence- and experience-based analysis in each chapter.Aimed at primary care physicians, internal medicine doctors, gastroenterologists, pulmonologists, surgeons, and medical students, the goal is to have a comprehensive and detailed easy-to-read book.