The Robert Wood Johnson Foundation asked the Institute of Medicine (IOM) to examine three topics in relation to public health: measurement, the law, and funding. IOM prepared a three report series–one report on each topic–that contains actionable recommendations for public health agencies and other stakeholders with roles in the health of the U.S. population. For the Public’s Health: Investing in a Healthier Future, the final book inthe series, assesses the financial challenges facing the governmental public health infrastructure. The book provides recommendations about what is needed for stable and sustainable funding, and for its optimal use by public health agencies. Building on the other two volumes in the series, this book makes the argument that adequate and sustainable funding for public health is necessary to enable public health departments across the country to inform and mobilize action on the determinants of health, to play other key roles in protecting and promoting health, and to prepare for a range of potential threats to population health. The final book in the For the Public’s Health series will be useful to federal, state, and local governments; public health agencies; clinical care organizations; and community-based organizations.