East Germany and Detente: Building Authority after the Wall (Cambridge: Cambridge University Press, 1985), cloth.
Paperback edition, 2008.
Germany Divided: From the Wall to Reunification (Princeton: Princeton University Press, 1992), cloth.
Named one of the best books of 1993 by CHOICE
Paperback edition, with an Epilogue, 1993
Transitional Justice and the Rule of Law in New Democracies (Notre Dame: University of Notre Dame Press, 1997), cloth and paperback.
Rebirth: A Political History of Europe since World War II, co-author (Routledge: 1992; second edition, 1999), cloth and paperback.
Judging the Past in Unified Germany (Cambridge: Cambridge University Press, 2001), cloth and paperback.
Introduction to Comparative Government, co-author (Longman, 2005), cloth and paperback.
The Crisis of Modern Times: Perspectives from the Review of Politics, 1939-1962, ed. (Notre Dame: University of Notre Dame Press, 2007), cloth and paperback.
Chinese Edition (xiandai weiji:zhengzhixue pinglun 1939-1962)
Hungarian Edition (A modernitás válsága)
Vanguard of the Revolution: The Global Idea of the Communist Party (Princeton: Princeton University Press, 2017). Paperback edition (2019).
Named one of the best books of 2018 by Foreign Affairs
Italian translation: La vanguardia della Rivoluzione
Hungarian translation: A forradalom élcsapata
Global 1968: Cultural Revolutions in Europe and Latin America (ed., with Anthony Monta) (Notre Dame: University of Notre Dame Press, 2021)
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The Trauma of Communism, ed. with Clemens Sedmak. Ukrainian Catholic University Press, 2022.
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Contemporary Far-Right Intellectuals and the Future of Liberal Democracy (with Alejandro Castrillon)
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Far-Right Newspeak and the Future of Liberal Democracy, ed. with Sam Piccolo
