Book excerpt: Contrary to conventional wisdom, no area of study is outdated more quickly than history, and no time has been more turbulent for the discipline than our own. This classic point/counterpoint reader in American history, now in a completely revised and updated seventh edition, takes note of history's impermanence, giving voice to the new without disposing of the old. In ten lively chapters, essays by the editors introduce dialectical readings by distinguished historians on topics from Reconstruction to the present. The essays and readings address history's timeless questions: "Reconstruction: Change or Stasis?," "American Imperialism: Economic Expansion or Ideological Crusade?," and "The Civil Rights Movement: Top-Down or Bottom-Up?" New readings are included on African Americans, women, and immigrants. In the fray of debate, eminent historians from Samuel Hays and Alfred Chandler to John Lewis Gaddis, Walter LaFeber, and Kathryn Kish Sklar struggle to interpret the past. The editors'essays moderate.