Sheri Van Dijk, MSW, is a psychotherapist, and renowned dialectical behaviour therapy (DBT) expert. She is author of several books, including Calming the Emotional Storm, Don't Let Your Emotions Run Your Life for Teens, and The Self-Harm Workbook for Teens. Her books focus on using DBT skills to help people manage their emotions and cultivate lasting well-being. She is also the recipient of the R.O. Jones Award from the Canadian Psychiatric Association.

Matthew McKay, PhD, is a professor at the Wright Institute in Berkeley, CA. He has authored and co-authored numerous books, including Self-Esteem, Thoughts and Feelings, When Anger Hurts, and ACT on Life Not on Anger. McKay received his PhD in clinical psychology from the California School of Professional Psychology, and specializes in the cognitive behavioural treatment of anxiety and depression. He lives and works in the Greater San Francisco Bay Area.

Jeffrey C. Wood, PsyD, lives and works in Las Vegas, NV. He specializes in brief therapy treatments for depression, anxiety, and trauma. He also provides coaching for spiritual development, communication skills development, and life skills. Wood is co-author of The New Happiness, The Dialectical Behaviour Therapy Skills Workbook, and The Dialectical Behaviour Therapy Diary.

Jeffrey Brantley, MD, is professor emeritus in the department of psychiatry and human behaviour at Duke University Medical Center. He is founder and former director of the Mindfulness-Based Stress Reduction (MBSR) Program at Duke Integrative Medicine. He has represented the Duke MBSR program in numerous radio, television, and print interviews. He is author of Calming Your Anxious Mind, and co-author of the Five Good Minutes® series.

Patrick Fanning is a professional writer in the mental health field, and founder of a men's support group in Northern California. He has authored and co-authored twelve self-help books, including Self-Esteem, Thoughts and Feelings, Couple Skills, and Mind and Emotions.

Erica Pool, PsyD, earned her doctorate at the Wright Institute in Berkeley, CA; and has clinical and research experience at the University of California, Berkeley, and the VA Northern California Health Care System; and has consulted with mental health start-ups. The goal of her work is to understand processes at the core of human suffering to help craft individualized and culturally responsive treatments.

Patricia E. Zurita Ona, PsyD, "Dr. Z," is a psychologist specializing in working with and creating compassionate, research-based, and actionable resources for overachievers and overthinkers to get them unstuck from worries, fears, anxieties, perfectionism, procrastination, obsessions, and ineffective "playing it safe" actions. She is founder of the East Bay Behavior Therapy Center-a boutique practice where she offers therapy and coaching services based on acceptance and commitment therapy (ACT) and contextual behavioral science. She has been nominated as a fellow of the Association of Contextual Behavioral Science for her contributions to the applications of ACT to specific fear-based struggles