Open Technique for Ivor Lewis Esophagectomy -- Minimally Invasive Ivor Lewis Esophagectomy -- Open Technique for Transhiatal Esophagectomy -- Open Radical En Bloc Esophagectomy -- Minimally Invasive Three-Field Esophagogastrectomy -- Open Distal Gastrectomy for Gastric Cancer -- Laparoscopic Distal/Subtotal Gastrectomy -- Minimally Invasive Total Gastrectomy for Gastric Carcinoma -- Total Gastrectomy and Splenectomy with Roux-en-Y esophagojejunostomy -- Open Pancreaticoduodenectomy for Peri-ampullary Cancers: A Step-By-Step Approach -- Laparoscopic Pancreaticoduodenectomy -- Robotic Technique for Pancreaticoduodenectomy -- Open Technique for Resection of Cancers in the Jejunum and Ileum -- Minimally Invasive Surgical Techniques for Cancers of the Small Intestine (Jejunum and Ileum) -- Open Right Colectomy -- Laparoscopic technique for right colectomy -- Robotic Technique for Right Colectomy -- Open Left Colectomy -- Laparoscopic Left Colectomy -- Open Technique for Low Anterior Resection -- Laparoscopic Technique for Low Anterior Resection -- Totally Robotic Low Anterior Resection of the Rectum -- Hybrid Laparoscopic-Robotic Low Anterior Resection -- Open Abdominoperineal Resection in Lithotomy Position -- Robotic Abdominoperineal Resection -- Open Technique for Transanal Resection -- Transanal Minimally Invasive Surgery for Rectal Cancer -- Transanal Endoscopic Surgery in Rectal Tumors.