Coloproctology is a surgical specialty which dynamically changes every few years. There is a profusion of colorectal textbooks but specialty series on particularly complex topics as well as on the specialized management approach for trainees and training colorectal surgeons are actually few. The aim of this text is a superior quality colorectal book written by world experts targeted at senior surgical and colorectal trainees and young consultant coloproctologists in current areas of subspecialty expertise. The structure of the chapters is current and is based on what does not appear and is not addressed in current colorectal textbooks. This series has proven useful in areas already represented, including Neurosurgery, Vascular Surgery, Transplantation Surgery, etc. The text is aimed at being relatively didactic with an algorithm approach to specialized areas within coloproctology which could potentially be updated every 3 years or so with new topics to create a set for didactic training in colorectal surgery. It is anticipated that these texts will become valuable teaching textbooks and part of every coloproctologist's armamentarium as well as appealing to all general surgeons and surgical trainees engaged in complex elective and emergency colorectal surgery.