Michael J Scott is a Consultant Psychologist specialising in the assessment and treatment of trauma and practising in Liverpool. This is his ninth text book and his books have included the Simply Effective CBT series and a self-help book for trauma victims and their friends and family, Moving On After Trauma. He taught CBT for 15 years at the University of Manchester and was External Examiner for the MSc in Cognitive and Behaviuoural Psychotherapies at the University of Chester. He is currently External Examiner at the Sheffield Hallam University. Windy Dryden is one of the leading practitioners and trainers in the UK in the Cognitive Behaviour Therapy (CBT) tradition of psychotherapy. He is best known for his work in Rational-Emotive Cognitive Behaviour Therapy (RECBT), a leading CBT approach. He has been working in the field of counselling and psychotherapy since 1975 and was one of the first people in Britain to be trained in CBT. He has published over 200 books and has trained therapists all over the world, in as diverse places as the UK, the USA, South Africa, Turkey and Israel. He is Emeritus Professor of Psychotherapeutic Studies at Goldsmiths, University of London.