The number of urban slum dwellers worldwide is staggering. According to UN-Habitat, 827.6 million people live in slums around the world. Despite meeting a Millennium Development Goal to significantly improve the lives of at least 100 million slum dwellers by 2020, the total number of people living in these areas still increased by 55 million between 2000 and 2010. By 2020, the world slum population is projected to reach 889 million. With the majority of people now living in cities, urban priorities are synonymous with human security and environmental sustainability and must be accounted for in the global development agenda. The result of the third annual paper competition co-sponsored by CUSP, USAID, IHC, the World Bank, and Cities Alliance, the chapters in this publication highlight the new research and innovative thinking of the next generation of urban planners, practitioners, and policymakers.