A holistic and strategic thinker, Leonard (Len) Gertler was one of the founding fathers of urban planning in this country. He became interested in cities as a researcher and scriptwriter for the National Film Board in the late 1940s and went on to write a landmark report on protecting Ontario's Niagara Escarpment and to serve as a policy adviser to Pierre Trudeau's Ministry of Urban Affairs. A pioneer in co-operative and sustainable development abroad, he involved his students, beginning in 1970, in projects in Indonesia, Jamaica, India, Japan and Uzbekistan.
