Why is it that the best and brightest of our children are arriving at college too burned out to profit from the smorgasbord of intellectual delights that they are offered? Why is it that some preschools and kindergartens have a majority of children struggling to master cognitive tasks that are inappropriate for their age? Why is playtime often considered to be time unproductively spent? In Play=Learning, top experts in child development and learning contend that the answers to these questions stem from a single source: in the rush to create a generation of Einsteins, our culture has forgotten about the importance of play for children's development. Presenting a powerful argument about the pervasive and long-term effects of play, Singer, Golinkoff, and Hirsh-Pasek urge researchers and practitioners to reconsider the ways play facilitates development across domains. Over forty years of developmental research indicates that play has enormous benefits to offer children, not the least of which is physical activity in this era of obesity and hypertension.