Books
Modern Christian Theology: An Intellectual History (Princeton University Press, forthcoming June 2027).
Travel as a Liberal Art: Place, Faith, History (Cascade Press, forthcoming).
Broken Altars: Secularist Violence in Modern History (Yale University Press, 2025). (Nominated by Yale University Press for the Grawemeyer Prize in Religion).
The Faiths of Others: A History of Interreligious Dialogue (Yale University Press, 2021). (Nominated by Yale University Press for the Grawemeyer Prize in Religion and selected as a CHOICE Outstanding Academic Title for 2022).
Editor, The Idea of Tradition in the Late Modern World: An Ecumenical and Interreligious Conversation (Cascade Press, 2019).
The Pope and the Professor: Pius IX, Ignaz von Döllinger, and the Quandary of the Modern Age (Oxford University Press, 2017).
Editor, with Mark A. Noll, Protestantism after 500 Years (Oxford University Press, 2016).
Remembering the Reformation: An Inquiry into the Meanings of Protestantism (Oxford University Press, 2016). Winner of an Award of Commendation from the Concordia Historical Society, 2017.
Editor, Rev. John Behr, Russell Hittinger, C. Ben Mitchell (afterword by Gilbert Meilaender), Imago Dei: Human Dignity in Ecumenical Perspective (Catholic University of America Press, 2013).
God and the Atlantic: America, Europe, and the Religious Divide (Oxford University Press, 2011). Winner of Christianity Today Book of the Year Award 2012 (category: history/biography). Russian Translation, Бог и Атлантика: Америка, Европа и религия, forthcoming)
Editor, with Mark Noll and James Turner, The Future of Christian Learning: An Evangelical and Catholic Dialogue (Brazos Press, 2008). Finalist for the Annual Book Award of the Lilly Fellows Program in the Humanities and the Arts 2009.
Protestant Theology and the Making of the Modern German University (Oxford University Press, 2006). Winner of the Annual Book Award of the Lilly Fellows Program in the Humanities and the Arts 2007.
Religion and the Rise of Historicism: W. M. L. de Wette, Jacob Burckhardt, and the Theological Origins of Nineteenth-Century Historical Consciousness (Cambridge University Press, 2000).
Selected Reviews of My Books: American Historical Review, Journal of the American Academy of Religion, Modern Theology, Journal of Church and State, Journal of Ecclesiastical History, Journal of American History, Journal of Religious History, Catholic Historical Review, Scottish Journal of Theology, Times Literary Supplement, Wall Street Journal, First Things, Christianity Today, Commonweal, Claremont Review of Books, Church Times, Journal of the History of Modern Theology, Horizons, Christian Scholar’s Review, Modern Reformation, Journal of European Studies, Law & Liberty, History of Religions, Journal of Religion, Hedgehog Review, Journal of Theological Studies, Studies in World Christianity, English Historical Review . . .