Steven C. Hayes, PhD, is Nevada Foundation Professor and director of clinical training at the department of psychology at the University of Nevada. An author of 38 books and over 540 scientific articles, his career has focused on analysis of the nature of human language and cognition, and its application to the understanding and alleviation of human suffering and promotion of human prosperity. Among other associations, Hayes has been president of the Association for Behavioral and Cognitive Therapy, and the Association for Contextual Behavioral Science. His work has received several awards, including the Impact of Science on Application Award from the Society for the Advancement of Behavior Analysis, and the Lifetime Achievement Award from the Association for Behavioral and Cognitive Therapy.
Kirk D. Strosahl, PhD, is cofounder of acceptance and commitment therapy (ACT), a cognitive behavioral approach that has gained widespread adoption in the mental health and substance-abuse communities. He is coauthor of Brief Interventions for Radical Change and other core ACT books. Strosahl works as a practicing psychologist at Central Washington Family Medicine, a community health center providing health care to medically underserved patients. He also teaches family medicine physicians how to use the principles of mindfulness and acceptance in general practice. Strosahl lives in Zillah, WA.
Robyn D Walser, PhD, is associate director of the National Center for PTSD, Dissemination and Training Division and associate clinical professor at the University of California, Berkeley. As a licensed psychologist, she maintains an international training, consulting and therapy practice. Walser is developing innovative ways to translate science into practice, and is responsible for the dissemination of state-of-the-art knowledge and treatment interventions in her current position. Walser has coauthored three books, including Learning ACT, The Mindful Couple, and Acceptance and Commitment Therapy for the Treatment of Post-Traumatic Stress Disorder.