The aim of Valuing Water, Valuing Livelihoods is to give decision-makers, health professionals and analysts a comprehensive view of the arguments and challenges associated with establishing the value of drinking-water interventions. The experts who have contributed to this publication provide guidance on assessing the benefits from improving access to safe drinking-water and from reducing the burden of water-related diseases. They show how to compare the value of these benefits to the costs of interventions, with special reference to small-scale drinking-water systems. Valuing Water, Valuing Livelihoods provides decision-makers, health professionals and analysts with the tools to promote improved access to safe drinking-water, especially for small and vulnerable communities in developing countries, by presenting comprehensive coverage of principles and practice, technology and economics, health, livelihoods and ethics.