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David A.


David A. Clark, PhD, is a clinical psychologist, and professor emeritus at the University of New Brunswick in Canada. He is author or coauthor of several books on depression, anxiety, and obsessive-compulsive disorder (OCD), including The Anxiety and Worry Workbook, The Anxious Thoughts Workbook, and Cognitive-Behavioral Therapy for OCD and Its Subtypes. Clark is a founding fellow and trainer consultant with the Academy of Cognitive Therapy, and fellow of the Canadian Psychological Association.

Books by David A. Clark

Overcoming Obsessive Thoughts
David A. Clark and Christine Purdon
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Although once thought to be a rare and unusual condition, obsessive-compulsive disorder (OCD) has become increasingly a part of everyday discourse as it has gathered more and more media attention.... Read More
The Anxious Thoughts Workbook
David A. Clark
Foreword by Judith S. Beck
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Are your thoughts getting in the way of living your life? Based in cutting-edge neuroscience and cognitive behavioral therapy (CBT), this important workbook will help you regain control from... Read More