With 150 accessible articles written by more than 130 leading experts, this essential reference provides authoritative introductions to some of the most important and talked-about topics in American history and politics, from the founding to today. Abridged from the acclaimed Princeton Encyclopedia of American Political History, this is the only single-volume encyclopedia that provides comprehensive coverage of both the traditional topics of U.S. political history and the broader forces that shape American politics--including economics, religion, social movements, race, class, and gender. Fully indexed and cross-referenced, each entry provides crucial context, expert analysis, informed perspectives, and suggestions for further reading. Contributors include Dean Baker, Lewis Gould, Alex Keyssar, James Kloppenberg, Patricia Nelson Limerick, Lisa McGirr, Jack Rakove, Nick Salvatore, Stephen Skowronek, Jeremi Suri, Julian Zelizer, and many more. Entries cover: Key political periods, from the founding to today Political institutions, major parties, and founding documents The broader forces that shape U.S. politics, from economics, religion, and social movements to race, class, and gender Ideas, philosophies, and movements The political history and influence of geographic regions.