Book excerpt: Authored by accomplished urban geographers and GIS experts, Exploring the Urban Community: A GIS Approachleverages the modern geographer's toolset, employing the latest GIS methodology to the study of urban geography. The Second Edition expands upon this timely, applied approach by incorporating new "internet GIS" Google Earth(TM) activities, which do not require readers to own expensive software or travel to a school lab. KEY TOPICS: The Spatial Display of Urban Environments; Defining the Metropolis; The Internal Structure of Cities; Systems of Cities; Neighborhoods; Migration and Residential Mobility; Race, Ethnicity, Gender, and Poverty; Industrial Location and Cities; Urban Core and Edge City Contrasts; Environmental Problems; Urban and Regional Planning. MARKET: A timely, authoritative reference for anyone interested in learning more about urban geography.