Preface The International Workshop on Enhancing Agricultural Innovation Systems was organized by the Agriculture and Rural Development Department of the World Bank and held during March 22–23, 2007, in Washington, DC. This Discussion Paper presents the converging views of workshop participants and the emerging agenda for an agricultural innovation systems approach. It incorporates views and content from the Economic and Sector Work Report, Enhancing Agricultural Innovation: How to Go beyond Strengthening Research Systems (World Bank 2006b), case studies of the innovation systems approach in different contexts, as well as other material on AIS.