Digby Tantam is Honorary Consultant Psychiatrist and Psychotherapist for Sheffield Health Care NHS Foundation Trust, an Emeritus Professor at the University of Sheffield, and Honorary Senior Research Fellow at the University of Cambridge. He is a chartered psychologist, and a fellow of the British Association of Counselling and Psychotherapy and the United Kingdom Council for Psychotherapy. Educated at Oxford, Harvard, Stanford, London, and the Open Universities, and with a doctorate from the Institute of Psychiatry in London, he started a clinic for adolescents and adults with autism spectrum disorders in 1980 that has continued ever since.—Jessica Kingsley