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 In This Moment: Five Steps to Transcending Stress Using Mindfulness and Neuroscience. Strosahl provides training and consultation services for Mountainview Consulting Group, Inc. He is a pioneer in the movement to bring behavioral health services into primary care. He resides in Portland, OR.

Patricia J. Robinson, PhD, is director of training and program evaluation at Mountainview Consulting Group, Inc., a firm that assists health care systems with integrating behavioral health services into primary care settings. She is coauthor of Real Behavior Change in Primary Care and The Mindfulness and Acceptance Workbook for Depression. After exploring primary care psychology as a researcher, she devoted her efforts to its dissemination in rural America, urban public health departments, and military medical treatment facilities. Robinson resides in Portland, OR.

Foreword writer Steven C. Hayes, PhD, is Nevada Foundation Professor and director of clinical training in the department of psychology at the University of Nevada, Reno. 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. 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 Therapies.