'Approaches to Private Participation in Water Services' is an informative toolkit that provides options for the design of policies to facilitate the delivery of good quality water and sanitation services to the poor. It highlights the need for tariffs, investment, stakeholder consultation, and regulatory policies to address the affordability and sustainability of those services. Targeted to an audience that includes government advisors as well as consultants, lawyers, and donors, the toolkit builds on previous global experience in private participation in water and sanitation supply. Developing country governments and those interested in private participation in water and sanitation supply will find this toolkit an invaluable resource.