Richard Velleman is Professor of Mental Health Research at the University of Bath (UoB), a consultant clinical psychologist with the Avon and Wiltshire Mental Health Partnership NHS Trust (AWP), and Director of the AWP/UoB Mental Health Research and Development Unit. His previous books include "Clinical Handbook of Co-existing Mental Health and Drug and Alcohol Problems" (edited, with Amanda Baker, 2006).
Eric Davis is Visiting Senior Research Fellow at the University of West of England (UWE) and a consultant clinical psychologist with the Gloucestershire Partnership NHS Trust. He is the...