Children's play has long been studied by clinicians as a window on the individual's early emotional development. More recently, developmental psychologists have taken an interest in play for what it reveals about early cognitive development. With the rise of developmental research into play, the time is right for an integration of both perspectives. This book answers the need for such a work. It brings together the work of leading workers in the field to provide an excellent overview of clinical and developmental approaches to play for the benefit of professionals in both fields, as well as readers interested in child behaviour.