The book discusses first the rationale for expanding participation in secondary education, linking this to the need to remain competitive in a globalized world. It then explores the characteristics of secondary schooling in developing countries using the extensive UNESCO database. It develops a series of simulations to estimate what the costs of secondary education expansion are likely to be for different groups of countries. This global analysis is enriched by a number of detailed case studies which illustrate secondary school financing issues in a wide range of countries in Africa, Asia and Latin America.