Extensively revised and updated the Fifth Edition of this best-seller provides a clear, concise, and comprehensive introduction to the ideas and ideals that shake and shape our political world. Written with the firm belief that ideology is the driving force of nation-states, history, and politics, this innovative text covers the range of contemporary political ideologies, from the standard categories of liberalism, conservatism, and socialism to newly emerging ideological alternatives.Offers the most coverage of contemporary, alternative ideologies-including gay rights, animal liberation and environmentalism-available on the market. Presents a consistent framework for comparing, contrasting, and analyzing various ideologies. Engages students with a friendly writing style. Provides a rich account of environmental concerns and considerations in politics by discussing the obligations to future generations, with special attention to the "time-horizon" problem and the "tragedy of the commons." Covers native people's liberation with clear references and examples.