Simon is Professor of Developmental Psychopathology at the University of Cambridge and Fellow at Trinity College, Cambridge. He is Director of the Autism Research Centre (ARC) in Cambridge. He holds degrees in Human Sciences from New College, Oxford, a PhD in Psychology from UCL, and an M.Phil in Clinical Psychology at the Institute of Psychiatry. He held lectureships in both of these departments in London before moving to Cambridge in 1994. He is also Director of CLASS (Cambridge Lifespan Asperger Syndrome Service), a clinic for adults with suspected AS.