Richard G Molloy is a Consultant Colorectal Surgeon in the Queen Elizabeth University Hospital Glasgow. He trained in Ireland, Boston, Glasgow, Edinburgh and was a Clinical Fellow at the Cleveland Clinic, Ohio. His special areas of interest include minimally invasive colorectal surgery. He has served as lead clinician for the West of Scotland Colorectal Cancer network. He also has an interest in surgical training and has acted as faculty on laparoscopic training courses in Scotland, England, France and Germany. He also developed the laparoscopic colorectal cadaver surgery course at the CASC centre in Glasgow University. He has published widely including a number of textbooks published by Oxford University Press. Graham J MacKay is a Consultant Colorectal Surgeon, Lead Clinician and Honorary Associate Professor in the University Department of Surgery at Glasgow Royal Infirmary. Mr MacKay trained predominantly in the West of Scotland with short fellowship periods at the Lahey Clinic, Boston, the Cleveland Clinic, Ohio and Jichi Medical University Hospital in Japan. His specialist interests are in minimally invasive colorectal surgery as well as a keen interest in surgical education and research. Mr MacKay served as Director of Education at the Royal College of Physicians and Surgeons in Glasgow and is a Fellow of the Faculty of Surgical Trainers. He has published a number of surgical textbooks through a relationship with Oxford University Press. Helen R Dorrance is a Consultant Colorectal Surgeon in the Queen Elizabeth University Hospital Glasgow. Patrick J O'Dwyer is an Emeritus Professor of Surgery in the University of Glasgow.