Nicholas Tarrier has held academic appointments in Brazil and Australia and worked as a clinical psychologist in the NHS. From 1991 to 2011 he was Professor of Clinical Psychology at the University of Manchester and at the Institute of Psychiatry, King's College London from 2011 to 2014. His main research interests have been in investigating psychosocial environments in the development of mental disorders and the development and evaluation of cognitive-behavioural and family interventions. He is now retired.

Judith Johnson is a Clinical Psychologist and Lecturer at the University of Leeds and the Bradford Institute of Health Research. Her research is focused upon understanding and supporting the development of wellbeing and resilience, and how this can be applied in healthcare settings to improve interventions and service delivery.

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