Rich and thoughtful, this book lays out why, if we want to understand human psychology, neural plasticity, cultural differences and cognitive development, we need evolutionary theory, and an understanding of how humans evolved. In Barrett's hands, the pernicious dichotomy that divides "learning" from "innate" explanations crumbles, leaving only evolutionary explanations, which may involve different types of developmental processes. In setting the house back in order, Barrett synthesizes insights and findings from psychology, culture-gene coevolutionary theory, anthropology, developmental biology and philosophy. He delivers Evolutionary Psychology 2.0.