Learning is the foundation of the human experience. It is the common thread across cultures and geographies and forms a continuous and malleable link across life stages of human development. Disparities in learning access and outcomes around the world have real consequences for income, social mobility, health, and well-being. This book traces the path of international development from its pre-colonial origins, through the rise of economics, to the emergence of a learning equity agenda. Today’s unprecedented environmental and geopolitical challenges compel us to invest in learning―our most renewable resource. Learning as Development asks us to rethink international education in a changing world.