This report presents details of the achievements of the International Irrigation Management Institute (IIMI) during 1991. The first section focuses on programs of thematic research carried out by the Institute in several developing countries. The second section describes IIMI's country operations and has been organized in order of broad geographical zones. There are separate sections on Training and Capacity building, Information, and Finance and Administration. A concluding Annexes section provides additional information on projects, publications, awards and other matters of interest.