Jason A. Nieuwsma, PhD, is associate professor in the department of psychiatry and behavioral sciences at Duke University, and serves as associate director of the Mental Health and Chaplaincy program at the Department of Veterans Affairs. Nieuwsma has led multiple projects, authored numerous articles focused on improving the integration of mental health and spiritual care services, and trained hundreds of chaplains and mental health professionals in the application of acceptance and commitment therapy (ACT).
Robyn D. Walser, PhD, is associate director of the National Center for PTSD Dissemination and Training Division and associate clinical professor in the department of psychology at the University of California, Berkeley. As a licensed clinical 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. Walser has coauthored three books, including Learning ACT, The Mindful Couple, and Acceptance and Commitment Therapy for the Treatment of Post-Traumatic Stress Disorder and Trauma-Related Problems.
Steven C. Hayes, PhD, is Nevada Foundation Professor in the department of psychology at the University of Nevada. An author of forty-one books and nearly 600 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.
Foreword writer Siang-Yang Tan, PhD, is professor of psychology at the graduate school of psychology at Fuller Theological Seminary in Pasadena, CA, and senior pastor of First Evangelical Church Glendale in Glendale, CA. He has authored or coauthored numerous articles and books, including Lay Counseling, Disciplines of the Holy Spirit, Rest, Coping with Depression, Full Service, and a major textbook, Counseling and Psychotherapy. He is a licensed psychologist, ordained pastor, and Fellow of the American Psychological Association.