While the psychodynamic understanding of play and play's therapeutic potential was long restricted to the realm of children, Winnicott's work demonstrated the profound significance of the capacity to play for healthy mental functioning during adult life. Scattered writings of Erikson, Glenn, and Shopper notwithstanding, the early spark of understanding remained largely ill developed. In Play and Playfulness, the reader is offered an exciting and highly informative set of essays about the psychic area that lies between reality and unreality and between veracity and imagination. It is the area...