Sheri L. Turrell, PhD, is a clinical psychologist living with her family in Toronto, ON, Canada. She is passionate about her clinical work with adolescents, helping them move toward a life that matters. Turrell is primary investigator, working in collaboration with Mary Bell, for studies of group-based acceptance and commitment therapy (ACT), and is developing a mobile ACT app for adolescents. She runs a full-time private practice, and enjoys being a consultant and trainer for graduate students and mental health professionals who are interested in learning ACT. Turrell teaches ACT at the university level, where she also facilitates therapy groups.