Martin M. Antony, Ph.D.,  is professor of psychology at Ryerson University in Toronto, 
ON, and director of research at the Anxiety Treatment and Research Centre at St. 
Joseph’s Healthcare in Hamilton, ON. He is also president-elect of the Canadian 
Psychological Association. He has published twenty-four books and more than 100 sci -
entiﬁc papers and book chapters in the areas of cognitive behavior therapy and anxiety 
disorders. He has received early career awards from the Society of Clinical Psychology 
(American Psychological Association), the Canadian Psychological Association, and the 
Anxiety Disorders Association of America, and is a fellow of the American and Canadian 
Psychological Associations. He is past president of the Anxiety Disorders Special 
Interest Group of the Association for Behavioral and Cognitive Therapies (ABCT) and 
has been program chair for the ABCT annual convention. He is actively involved in 
clinical research in the area of anxiety disorders, teaching, and education, and maintains 
a clinical practice. Visit him online at www.martinantony.com.
Richard P. Swinson, MD, is professor emeritus and past chair of the Department of 
Psychiatry and Behavioural Neurosciences at McMaster University in Hamilton, ON, 
Canada.  He is also medical director of the Anxiety Treatment and Research Centre 
and past psychiatrist-in-chief at Joseph’s Healthcare, also in Hamilton. He is a fellow 
of the Royal College of Physicians and Surgeons of Canada, the American Psychiatric 
Association, and the Royal College of Psychiatrists UK. He was awarded an inaugu -
ral fellowship of the Canadian Psychiatric Association in 2006. His research interests 
lie in the theory, assessment and treatment of anxiety disorders, particularly obsessive-
compulsive disorder and social anxiety disorder.  He has published more than 180 peer-