authoritative source for information on the state of education around the world. It provides key information on the output of educational institutions; the impact of learning across countries; the financial and human resources invested in education; access, participation and progression in education; and the learning environment and organization of schools. Older reports available at website.
"A series of reports on the OECD’s Programme for International Student Assessment’s (PISA) periodic testing program on student performance. The reports generally compare student (15 year olds) academic performance across countries, or discuss the methodology used to gather the data."