"L'Abate (emer., Georgia State Univ.) has written a valuable reference detailing the central role that play, in its many forms, has in the epigenetic life cycle, from infancy all the way to old age. In doing so, he fills in an epistemological gap usually not acknowledged in personality theory. He covers in detail every aspect of play: its varied manifestations across the life span, its relevance to personality and social development, prevailing cultural attitudes towards it, and how it is instrumental in aiding various populations (e.g., individuals with disabilities, aggressive youth). All the various strands come together in a multifaceted hierarchical paradigm that presents an integrative conceptual structure highlighting the elements of play. The references cited are extensive and the narrative is easy to follow, sprinkled with personal anecdotes and vignettes about L'Abate's grandchildren. Linking theory to therapeutic intervention, this is a superb reference for all concerned with play development. Summing Up: Essential. Lower- and upper-division undergraduates, graduate students, professionals, general readers." - Choice