* Professors who have taught a course based on the previous edition will be pleased to find the core message intact but updated with a significant body of recent research, summarizing the most recent controlled-outcome research studies including meta-analytic studies, demonstrating the effectiveness of child-centered play therapy across cultural groups and with a wide variety of problematic behaviors
* Expanded to cover additional topics of interest, the new edition includes the dynamics and structure of supervision in play therapy, paradoxes in play therapy, models of the change process in child-centered play therapy, and more
* The additions and changes to the fourth edition explain and enhance the concept of play therapy as a process of living out beliefs about children rather than applying techniques, methods or skills, enlarge the view of the play therapist as a person of commitment and passion and present children as being capable of much more than they seem to be