Lakes and reservoirs are theworld's major repository of accessible freshwater. Theyare central to the livelihoods and economies of a largefraction of the world's population, as well as beingcenters of aquatic biodiversity. They play a central role inintegrated water resources management. Yet in spite of theirimportance and the growing threats to them, they have notreceived sufficient attention in the global discussion onwater policy. The Lake Basin Management Initiative (LBMI)was implemented as a cooperative program supported by apartnership of many international agencies to draw on globalknowledge on Lake Basin management. An analysis ofexperiences from 28 lakes around the world sought toidentify practical lessons learned from management of lakebasins, create new knowledge on Lake Basin management, fillan important gap in knowledge of lake management indeveloping countries, and derive lessons frominternationally funded projects.