The endoscopy unit, colonoscope, and accessories -- The role of the endoscopy assistant during colonoscopy -- Indications and contraindications for colonoscopy -- Preparation for colonoscopy -- Sedation for colonoscopy -- Colonoscopy technique : the ins and outs -- Colonoscopic findings -- Diagnostic biopsy -- Thermal techniques : electrosurgery, argon plasma coagulation, and laser -- Basic principles and techniques of polypectomy -- Difficult polypectomy -- Management of malignant polyps -- Therapeutic colonoscopy -- Complications of colonoscopy -- Quality in colonoscopy -- Teaching and training in colonoscopy -- Computed tomographic colonography (virtual colonoscopy) -- Advanced imaging techniques -- The future of colonoscopy