This resource paper on urban geography is part of a series designed to supplement undergraduate geography courses. It sets forth some of the principles of urban geography with special reference to form development and land uses within cities. Chapter one examines the legal, administrative, population, dentistry, and functional definitions of a city. Chapter two describes world patterns of urban growth throughout history and in the United States. Chapter three examines theories of urban centralization and decentralization including the gravity and potential models, concentric zonal model, wedge or sector model, multiple nuclei model, and site rentals and transport costs theories. Chapter four reviews the changing patterns of urban growth including the era of mass transportation dominance, the era of the automobile, and the spatial forms of urban growth. Chapter five examines theories behind metropolitan expansion, intermetropolitan coalescence, and urban regional planning. Chapter six reviews the spatial patterns of integration and segregation in the inner city emphasizing the neighborhood school, mobility, and processes of integration. (Author/DE)