The first fully comparative empirical analysis of the relationship between education and social cohesion, this book develops a new ''distributional theory'' of the effects of educational inequality on social solidarity. Based on a wide-ranging theoretical critique, and extensive analysis of data on inequality and social attitudes for over 25 developed countries, the study shows how educational inequality undermines social trust, civic co-operation and the rule of law. It is not how much education a country has that matters for social cohesion but how it is distributed and the co-operative values that people learn.