Rob Willson (Author) Rob is the author of Overcoming Obsessive Compulsive Disorder and Manage Your Mood, along with David Veale. He is a cognitive behavioural therapist in private practice. He also works as a tutor at Goldsmiths College, University of London. He holds an honours degree in Psychology, an MSc in Rational Emotive Behaviour Therapy and a Postgraduate Diploma in Social and Behavioural Health Studies. He has been involved in treating people with depression and anxiety for the past twelve years. David Veale (Author) David Veale is the author of Overcoming Obsessive Compulsive Disorder and Manage Your Mood, along with Rob Willson. He is a consultant psychiatrist in Cognitive Behavioural Therapy at the South London and Maudsley NHS Foundation Trust and the Nightingale Hospital, London. He is a Visiting Professor at the Institute of Psychiatry, Psychology and Neuroscience, King's College London. His website is https://www.veale.co.uk. He has been helping people with depression and anxiety disorders for more than 30 years. Alex Clarke (Author) Alex Clarke is a Consultant Clinical Psychologist at the Royal Free Hospital, London.