* My Life in a Book: A History of the Self in the German Enlightenment
* The Constitution of Agency: Eighteenth-Century Philosophy and the Origins of Modern Autonomy
* Freedom, Autonomy, and Self-Determination in the German Enlightenment: Kant, Herder, and Fichte
Articles and Chapters in Books
* “The Constitution of Agency in the German Enlightenment: Kant’s Doctrine of Transcendental Apperception,” Studies in History and Philosophy of Science 33 (2002): 53–87.
* “Herder’s Philosophy of Agency,” Journal of the History of Philosophy 41 (2003): 533–54.
* “Kant, Herder, and the Birth of Modern Autonomy,” in The Cambridge Companion to Autonomy, edited by Melissa Lane, 113–28. Cambridge: Cambridge University Press, 2013.
* “Fichte’s Idealist Anthropology: Autonomy, Self-determination, and the ‘I,’” in Fichte’s Philosophy of Nature and Science: New Perspectives, edited by Christopher Yeomans and Aaron Garrett, 117–36. Berlin: De Gruyter, 2018.
* “The Moral Constitution of Autonomy in the German Enlightenment,” in Autonomy and the Self, edited by Jonathan Webber and Michael McKenna, 165–88. Oxford: Oxford University Press, 2018.
* “The Kantian Roots of Modern Autonomy: The Role of Transcendental Philosophy in the Genealogy of the Modern Ethical Subject,” Studies in History and Philosophy of Science 61 (2020): 21–30.
Translations
* Georg Wilhelm Friedrich Hegel, On the Difference Between Fichte’s and Schelling’s System of Philosophy, trans. Thomas Spielkamp. Cambridge: Cambridge University Press, 2018.