In the past 50 years, the number of people in developing countries saved from death through large-scale public health programs has climbed into the millions. The average life expectancy for the developing world rose from 40 to 65, and the number of children who live to age 5 has doubled. From virutally eliminating smallpox worldwide to decreasing maternal mortality through family planning , well-planned, well-funded programs do work. A new book and report from the Center For Global Development review some of most effective programs in the world and analyzes the factors that led to their success. The number-one success factor? Predictable, adequate funding from international and local sources. SEE THE REPORT