Very rich information on educational outcomes has been generated through OECD work, especially with the triennial Programme for International Student Assessment (PISA), which surveys the achievements of 15-year-olds in reading, mathematics, science and related aspects of competence, together with a range of associated background information. The Strong Performers and Successful Reformers in Education series has allowed for deeper understanding of the policy trajectories and practices of those education systems that are among the “top” performers on PISA. Education is also closely related to employment outcomes and earnings, with key OECD findings reported in this chapter. Additionally there is an expanding analysis of returns to education within the OECD, with findings confirming the positive returns to higher levels of educational attainment on a variety of measures, certainly for the individual, but also for the economy at large. There are also positive returns to early childhood education and care, and to vocational education. Work on the social outcomes of education examines how education influences health, civic participation and social engagement, as well as the economic outcomes.