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Steven C. Hayes, Ph.D., is a professor of psychology at the University of Nevada, Reno. The author of forty-three books and more than six hundred scientific articles, he has served as president of the Association for Behavioral and Cognitive Therapy and the Association for Contextual Behavioral Science, and is one of the most cited psychologists in the world.

Dr. Hayes initiated the development of Acceptance and Commitment Therapy (ACT) and
of Relational Frame Theory (RFT), the approach to cognition on which ACT is
based.


A Liberated Mind Steven Hayes

ACT founding father Steven Hayes shows us how to apply the principles of psychological flexibility to live more vital, more connected and healthier lives

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