Bremner of the Population Reference Bureau (PRB). We are grateful to Karen Hardee, Director of the Evidence Project, and Clive Mutunga, Family Planning and Environment Technical Advisor USAID, for the initial idea and encouragement to undertake this report and for reading and helping us to improve numerous drafts. Many thanks as well go to Ellen Weiss of the Evidence Project for her edits, ideas, and communications expertise and to Anneka Van Scoyoc of the Evidence Project for making the report, images, and appendices so visually effective. Finally, we must acknowledge all of the researchers, advocates, educators, practitioners, and donors who bring PHE to communities and provided PHE results to us.