Paul Gilbert OBE qualified in clinical psychology in 1980 and is professor of clinical psychology at the University of Derby and has had a number of visiting international professorships. From his extensive clinical and research work he developed compassion focused therapy for people with complex mental health problems.

Gregoris Simos, MD, is a Professor of Psychopathology, University of Macedonia, Thessaloniki, Greece. He is an internationally respected psychiatrist and a recognized authority in the field of contemporary psychotherapies (CBT, CFT). He is a member of the International Advisory Committee of the Beck Institute for CBT.