Dr Costas Papageorgiou began his higher academic education and training at the University of Buckingham where he obtained a Bachelor of Science (BSc) degree in Psychology with Biology. Whilst studying at the University of Buckingham, he conducted research into memory and thinking processes in diabetes.

Dr Papageorgiou later obtained a Master of Arts (MA) degree in Applied Psychology at the University of Liverpool where he carried out research examining body-focused attention and death beliefs in health anxiety.

He remained at the University of Liverpool to complete a 3-year clinical psychology training programme, which culminated in the professional degree award of Doctor of Clinical Psychology (DClinPsychol). During his clinical training, Dr Papageorgiou undertook placements in a number of National Health Service hospitals and clinics in the North West of England. In particular, he completed specialist clinical training in Cognitive Behavioural Therapy (CBT), Interpersonal Therapy (IPT), and Eye Movement Desensitisation and Reprocessing (EMDR). Whilst training to become a clinical psychologist, Dr Papageorgiou carried out research testing and investigating a new psychological theory and treatment of social phobia/anxiety.

Subsequently, Dr Papageorgiou embarked on further extensive clinical research at the University of Manchester, where he was awarded the degree of Doctor of Philosophy (PhD) in Clinical Psychology. This research focused on testing a new psychological theory and treatment of negative thinking processes or rumination in depression.

Dr Papageorgiou is a Chartered Clinical Psychologist (CPsychol) of the British Psychological Society as well as a Chartered Scientist (CSci) of the Science Council. He is also a member of national and international professional bodies and associations, including the Division of Clinical Psychology of the British Psychological Society (DCP/BPS) and the British Association for Behavioural and Cognitive Psychotherapies (BABCP).