Kevin L Polk Author

Editor Kevin L. Polk, PhD, is a clinical psychologist who has been a practicing for twenty-three years, primarily helping veterans and others with troubling trauma memories. While in graduate school he learned psychodynamic and family systems therapy, and then for practical reasons he learned and practiced cognitive behavioral therapy (CBT) for fifteen years. For the past eight years he has studied acceptance and commitment training and therapy (ACT), spending close to 20,000 hours studying the philosophy and theory behind ACT, learning and designing ACT interventions. He is a peer reviewed ACT trainer who is passionate about teaching others how to use the Matrix to increase psychological flexibility and valued living around the world.

Editor Benji Schoendorf, MSc, MPs, is the author of two French language books, one about ACT in general and the other about functional analytic psychotherapy. Both of his books are based on the Matrix diagram.