Donald Robertson is a UKCP registered psychotherapist, specializing in cognitive-behavorial therapy (CBT), clinical hypnosis, and other evidence-based approaches. He has been in practice as a therapist for over fifteen years and mainly treats clients with anxiety-related problems at his clinic in Harley Street, London. Donald is also an experienced trainer and workshop facilitator. He is the author of dozens of articles in therapy journals and magazines and of the books The Philosophy of Cognitive Behavioural Therapy, and The Practice of Cognitive-Behavioural Hypnotherapy. He is also the editor of The Discovery of Hypnosis, the complete writings of James Braid, the founder of hypnotherapy.