This book provides a comprehensive overview of the latest endoscopic techniques for treating gastroesophageal reflux disease (GERD), including anti-reflux mucosectomy(ARMS), radiofrequency (RF), injection, and endoscopic suturing. It systematically explains and discusses the indications, contraindications, efficacy, and potential complications of various endoscopic treatments. The pathogenesis, diagnostic approaches, and methods for evaluating the efficacy of gastroesophageal reflux are also thoroughly examined. This detailed and comprehensive work provides gastroenterologists and endoscopists with a valuable resource for the treatment and evaluation of GERD.