David R. Evans is a professor emeritus at Western University. For 30 years he was a professor in the clinical psychology program at Western and prior to that he was a faculty member of the Department of Educational Psychology at the University of Calgary. Over the years he has been a consultant to numerous agencies, including psychiatric and general hospitals, adolescent and addictions facilities, and police services. He is a retired member of the College of Psychologists of Ontario. He has provided psychological services to the London Police Service, the Oxford Community Police Service, the Midland Police Service, the Ontario Provincial Police, and the Royal Canadian Mounted Police. He holds an honours BA in psychology (University of Toronto), an MA in clinical and counselling psychology (University of Ottawa), and a PhD in applied psychology (The Ontario Institute for Studies in Education, University of Toronto), and he has twice been a visiting scholar at Wolfson College, Cambridge. He is a past president of the Canadian Psychological Association, a past president of the Ontario Psychological Association, and he has served as a member of the Council of Representatives of the American Psychological Association. He has also been a Canadian representative to the International Union of Psychological Science. He is the author of numerous books, chapters, journal articles, and tests. He has presented papers on quality of life in Canada, the United States, Europe, and Australia. His most recent books include The Law, Standards, and Ethics in the Practice of Psychology (3rd ed., Carswell); Essential Interviewing (8th ed., Brooks/Cole) with Margaret Hearn, Max Uhlemann, and Allen Ivey; Cultural Clinical Psychology (Oxford University Press) and the Handbook of Clinical Health Psychology (Academic Press) both with Shahé Kazarian as co-editor. In 2007 he was awarded a lifetime achievement award by the Ontario Psychological Association in appreciation for his significant and sustained contribution to the life of professional psychology in Ontario.