This document discusses principles of bowel anastomosis, including types of anastomoses, indications for anastomoses, pre-operative preparation, intra-operative techniques, post-operative care, complications, and controversies. It covers topics such as hand-sewn versus stapled anastomoses, single versus double layer closure, inversion versus eversion of tissue, and use of abdominal drains and NG tubes. The goal of bowel anastomosis is to successfully rejoin bowel segments through meticulous surgical technique and postoperative management in order to restore intestinal continuity.