Overview of NOSES -- Preoperative Preparation of NOSES for Gastrointestinal Cancer -- Laparoscopic Anatomy of Thoracic, Abdominal and Pelvic Cavity -- Laparoscopic Lower Rectal Cancer Resection with Transanal Specimen Extraction (CRC-NOSES IA and CRC-NOSES IB) -- Laparoscopic Ultra Low Rectal Cancer Resection with Transanal Specimen Extraction (CRC-NOSES IC, Coloanal Hand-Sewn Anastomosis) -- Laparoscopic Resection of Tumors of Left Colon, Sigmoid colon and Upper Rectum with Transanal Specimen Extraction (NOSES IV and VI): Portuguese Experience -- NOSES in Colorectal Surgery: Vietnamese Experience -- Experience and Skill Sharing on NOSES in the Left and Right Colon -- Natural Orifice Specimen Extraction in Laparoscopic Anterior Resection (NOSE-LAR): Taiwanese Experience -- Laparoscopic Complex NOSES Surgery of Colorectal Tumor.