Education at a Glance 2013: OECD Indicators is a 440 pages long document (PDF) that can satisfy the appetite of data, statistics and visualization enthusiasts who are also curious about countries and their educational aspects. According to the official announcement:
OECD’s annual Education at a Glance looks at who participates in education, what is spent on it, how education systems operate and the results achieved. The latter includes indicators on a wide range of outcomes, from comparisons of students’ performance in key subject areas to the impact of education on earnings and on adults’ chances of employment.
Below you can see some charts that drew my attention (not shown here but statistics and charts showing how much each country spends on education are also very interesting and detailed):
