While current research shows that play therapy is an effective means of treatment, it doesn′t explain why it helps or how to utilize play therapy to bring about positive change. In this revision and expansion of a classic play therapy book, editors Charles Schaefer and Athena Drewes, two renowned experts and pioneers in the field, share the nuts and bolts of how play therapy can foster treatment gains in children and adolescents. This pioneering book provides a unique understanding of the process of play therapy by highlighting the therapeutic forces contained within it and offers practical guidance for mental health professionals who are looking to incorporate play into their practice as well as for certified play therapists looking for a refreshing and up–to–date guide.