This timely volume provides a state-of-the-art review of all research to date on evaluating the cost-effectiveness of HIV prevention programs. Chapters feature comprehensive discussions on both scientific and practical uses - and limitations - of current studies. Addressing key questions about allocating scarce resources to HIV prevention, the Handbook is essential for those who require the most up-to-date research on the methods, findings, and practical uses of economic evaluations. A special feature is the inclusion of helpful tables summarizing the relevant literature.