As Asia rapidly urbanizes, providing water and sanitation services has become problematic. Most developing country governments in the region cannot deliver the required services themselves, and the private sector is reluctant to invest due to the risks and low returns, especially for sanitation. Public–private partnerships in water supply and sanitation have had mixed results, making sustainable sanitation a particularly challenging problem. Fortunately, there are new and innovative ways to solve the problem of sustainable financing for water and sanitation services. This book brings together a collection of studies that discuss the recent developments in the water and sanitation sector in Asia and, most importantly, identify their spillover effects. This first attempt of its kind aims to give budget-constrained policy makers the incentive to introduce these approaches for the sustainable financing of infrastructure and, in particular, water and sanitation.