The November 1998 release of Assessing Aid represents a landmark attempt by the World Bank to study what makes aid effective. Amidst increasing international concerns about foreign aid dependency and decreasing aid outlays by all major Organization for Economic Cooperation and Development (OECD) donors, the World Bank and other members of the aid community are under significant pressure to show evidence that aid actually works. Assessing Aid works hard to provide concrete evidence that aid can work and to describe the conditions that support successful programs. It also works to find a balance between the interests of donor nations and the needs of developing nations. The result is an important re-evaluation of how international assistance programs are designed, implemented, and monitored. [To view this article, please download the PDF.]