I am Chair in Translational Psychology at the UCL Great Ormond Street Institute of Child Health. I am an honorary Consultant Clinical Psychologist, a member of the Health Professions Council and an accredited therapist with the British Association of Behavioural and Cognitive Psychotherapy. I founded the Charlie Waller Institute of Evidenced Based Psychological Treatment in 2007 at the University of Reading and was its director until 2012. I am a Trustee of the Charlie Waller Memorial Trust, Patron of 'No Panic' and recipient of prizes such as the Positive Practice 'Making a Difference' Award, British Psychological Society Award for Distinguished Contributions to Psychology in Practice and Marsh Award for Mental Health for research that has made a difference to clinical practice. I am a former associate editor of 'Behaviour Research and Therapy' and currently serve on the NIHR HTA Mental Health panel and am a NICE Expert Advisor.