Read Stuart Brown’s posts on the Penguin Blog. Or the blissful abandon of a golden retriever racing across a lawn. This is the joy of play. By definition, play is purposeless, all-consuming, and fun. But as Dr. Stuart Brown illustrates, play is anything but trivial. It is a biological drive as integral to our health as sleep or nutrition. Dr. Brown has spent his career studying animal behavior and conducting more than six-thousand “play histories” of humans from all walks of life-from serial murderers to Nobel Prize winners. Backed by the latest research, Play (20,000 copies in print) explains why play is essential to our social skills, adaptability, intelligence, creativity, ability to problem solve and more.