NICK RIDING is Director, Psychotherapy Programmes, at the Kent Institute of Medicine and Health Sciences, University of Kent at Canterbury, UK. He also practises as a psychotherapist within the National Heatlh Service.GEORGIA LEPPER is Lecturer in Psychotherapy at the Kent Institute of Medicine and Health Sciences, University of Kent at Canterbury, UK. She is the author of Categories in Talk and Text: A Practical Introduction to Categorization Analysis.