The 2001 Annual Review of Development Effectiveness: Making Choices (ARDE) presents the latest independent evaluation results, with a focus on how the World Bank and its clients can make the best selection from the available assistance instruments. The findings of the 2001 ARDE show, selecting the right combination and sequencing of activities in a given setting, can make the difference between success and failure. How these instruments are being put into practice, their effectiveness and link to country, sector, and thematic results, and where there is need for improvement are the subject of this review.