A quick reference for users interested in gender statistics. It presents ex-disaggregated data for more than 200 countries in a straightforward, country-by-country reference on education, health, access to economic opportunities, and public life and decision making. Summary pages that cover regional and income group aggregates are also included. This fourth issue of The Little Data Book on Gender reflects the structure of the World Development Report 2012 on Gender Equality and Development. The report examined the driving forces behind differences in key aspects of welfare between men and women—education and health, access to economic opportunities and productive resources, and the ability to make effective choices and take action.