The "Encyclopedia of U.S. Labor and Working-Class History" provides sweeping coverage of U.S. labor history. Containing over 650 entries, the "Encyclopedia" encompasses labor history from the colonial era to the present. Articles focus on states, regions, periods, economic sectors and occupations, race-relations, ethnicity, and religion, concepts and developments in labor economics, environmentalism, globalization, legal history, trade unions, strikes, organizations, individuals, management relations, and government agencies and commissions. Articles cover such issues as immigration and migratory labor, women and labor, labor in every war effort, slavery and the slave-trade, union-resistance by corporations such as Wal-Mart, and the history of cronyism and corruption, and the mafia within elements of labor history. Labor history is also considered in its representation in film, music, literature, and education. Important articles cover the perception of working-class culture, such as the surge in sympathy for the working class following September 11, 2001. Written as an objective social history, the "Encyclopedia" encapsulates the rise and decline, and continuous change of US labor history into the twenty-first century.