Introduction: Introduction - moving beyond the urban-rural dichotomy, Tony Champion and Graeme Hugo; Lest we re-invent the wheel - lessons from previous reviews, Tony Champion; World urbanization - trends and prospects, Hania Zlotnik. Regional Perspectives on Settlement Change: The fading of city-suburb and metro-nonmetro distinctions in the United States, William H. Frey; Population dynamics and urbanization in Latin America - concepts and data limitations, Alfredo E. Lattes, Jorge Rodriguez and Miguel Villa; Urbanization trends in Asia - the conceptual and definitional challenges, Gavin W. Jones; Analyzing urbanization in Sub-Saharan Africa, Philippe Bocquier. Case Studies: The transformation of the urban system in Mexico, Gustavo Garza; Urban development and population redistribution in Delhi - implications for categorizing population, Veronique Dupont; Urbanization and metropolitanization in Brazil - trends and methodological challenges, Jose Marcos Pinto Cunha; Changing urbanization processes and in situ rural-urban transformation - reflections on China's settlement definitions, Yu Zhu. Conceptualizing Settlement Systems: An evolutionary approach to settlement systems, Denise Pumain; The conceptualization and analysis of urban systems - a North American perspective, Larry S. Bourne and Jim Simmons; The nature of rurality in postindustrial society, David L. Brown and John B. Cromartie; Rethinking rurality, Keith Halfacree. Moving From The Conceptual To The Operational: Multiple dimensions of settlement systems - coping with complexity, Mike Coombes; Using remote sensing and geographic information systems to identify the underlying properties of urban environments, John R. Weeks; Reflections on the review of metropolitan area standards in the United States, 1990 - 2000, James D. Fitzsimmons and Michael R. Ratcliffe. The Way Forward: Conclusions and recommendations, Graeme Hugo and Tony Champion.