In the last decade there has been a revolution in our understanding of the minds of infants and young children. We used to believe that babies were irrational, and that their thinking and experience were limited. Now Alison Gopnik -- a leading psychologist and philosopher, as well as a mother -- explains the cutting-edge scientific and psychological research that has revealed that babies learn more, create more, care more, and experience more than we could ever have imagined. And there is good reason to believe that babies are actually smarter, more thoughtful, and more conscious than adults. In a lively and accessible tour of the groundbreaking new psychological, neuroscientific, and philosophical developments, Gopnik offers new insight into how babies see the world, and in turn promotes a deeper appreciation for the role of parents in shaping the lives of their children.