Mark Davies trained at The London Hospital Medical College. Having spent two years in research at the Royal Free Hospital, London he completed his higher surgical training in Cardiff, Swansea & Manchester. He was appointed as a Consultant Surgeon in Swansea in 2007 where he has developed an expertise in inflammatory bowel disease and colorectal cancer. Mr. Davies has a busy clinical practice in the broader aspects of colorectal surgery including minimal access surgery, colorectal cancer and proctology. He is a senior clinical tutor at Swansea University, Chair of the Colorectal Cancer National Specialty Advisory Group and a member of The Court of Examiners of The Royal College of Surgeons of England. He has extensively published and remains a committed surgical trainer and educator. Clinical interests Inflammatory bowel disease Colorectal cancer Abdominal wall hernias Minimal access surgery Proctology (Haemorrhoids, Fissure, Fistula etc) Research interests Colorectal Cancer Quality of life after surgery.

Professor Kumar has considerable previous experience in writing and editing books and journals related to genetics and genomics. His books include Genomics and Clinical Medicine and Genomics and Health in the Developing World. He founded and leads the new open access journal Applied and Translational Genomics, published by Elsevier. He has published 40 articles in the journals literature.

Professor Dhavendra Kumar is a Visiting Professor, Genomic Policy Unit, Faculty of Life Sciences and Education, The University of South Wales and Consultant in Clinical Genetics at the University Hospital of Wales, Institute of Medical Genetics, Cardiff University, Cardiff, United Kingdom. He is one of the Consultants for the All Wales Medical Genetics Service and the lead Clinician for Clinical Cardiovascular Genetics. After qualifying in Medicine from the King George's Medical College, University of Lucknow, India, he completed postgraduate training in Pediatrics with an MD. Since 1980 he has pursued a career in Medical Genetics in the UK. In 1990 he became a Diplomate of the American Board of Medical Genetics. He is a Fellow of the American College of Medical Genetics (FACMG) and as well as Royal Colleges of Physicians (FRCP-London and FRCP-Ireland) and Pediatrics and Child Health (FRCPCH-UK).

In 2015, he was conferred with the higher degree of DSc by his Alma Mater, King George's Medical University, Lucknow (UP, India) based on his life-time contributions and achievements to genetic and genomic applications in medicine and health.

Professor Maher is an international authority in clinical cancer genetics and genomics. His vast experience and in-depth knowledge of basic genetics and molecular biology in key cancer family syndromes are unparallel. He would closely supervise and guide on the development of this important volume in the series.