Book excerpt: This book addresses all aspects of endoscopy from scope and tower basics to the more advanced interventional procedures like endoscopic retrograde cholangiopancreatography, per-oral esophageal myotomy, and percutaneous endoscopic gastrostomy. It covers a broad range of topics in order to remain relevant to the surgical subspecialist, the community general surgeon, the surgical fellow interested in endolumenal and transluminal procedures, and the surgical resident interested in the very basics of endoscopy. The table of contents is intentionally designed to mirror the Flexible Endoscopy curriculum currently being implemented for all minimally invasive, advanced GI and surgical endoscopy fellowships. The chapters are broken up into five parts. The first part introduces the SAGES Masters Program, followed by parts that cover flexible endoscopy basics, flexible endoscopy procedures, and finally bariatric flexible endoscopy. Written by experts and thought leaders in their fields, The SAGES Manual of Flexible Endoscopy serves as a valuable resource for surgeons of all training and skill levels to better grasp an overview of modern endoscopy practice.