Tim Campbell has worked for more than 35 years in urban development with experience in scores of countries and hundreds of cities in Latin America, South and East Asia, Eastern Europe, and Africa. His areas of expertise include strategic urban planning, city development strategies, decentralization, urban policy, and social and poverty impact of urban development. He is chairman of the Urban Age Institute, which fosters leadership and innovation between and among cities in areas of strategic urban planning, urban policy and management, sustainable environmental planning, and poverty reduction. Campbell retired from the World Bank in December 2005 after more than 17 years working in various capacities in the urban sector. Before joining the Bank, he worked for over 13 years as a private consultant and university professor. His consulting clients included private sector firms, governments, and international organizations. He taught at Stanford University and the University of California at Berkeley. He lived in rural and small town Costa Rica for two years as a Peace Corps Volunteer. Author affiliation details are correct at time of print publication.