Ben Sedley, PhD, is a clinical psychologist and acceptance and commitment therapy (ACT) practitioner with over fifteen years of experience working with adolescents and adults facing mental health difficulties. Sedley's research and practice has focused on examining children and young people's understanding of mental health, which has helped guide him on the best ways to explain mental health concepts and ACT to young people. He is author of the teen self-help book, Stuff That Sucks.

Lisa W. Coyne, PhD, is founder and senior clinical consultant of the McLean OCD Institute for Children and Adolescents (OCDI Jr.), and assistant professor in the department of psychiatry at Harvard Medical School. She also founded and directs the New England Center for OCD and Anxiety, and is coauthor of The Joy of Parenting (with Amy Murrell) and Acceptance and Commitment Therapy: The Clinician's Guide for Supporting Parents with ACT (with Koa Whittingham). She lives near Boston, MA, with her family and two therapy dogs, Doog and Peach.