The Eucharistic Form of God: Hans Urs von Balthasar’s Sacramental Theology. Notre Dame, IN: University of Notre Dame Press, 2022.

Xavier Tilliette, The Eucharist in Modern Philosophy. With a preface by Cyril O’Regan. Washington, DC: The Catholic University of America Press, 2023. Translation and introduction.

Distributed Like Bread: Hans Urs von Balthasar Speaks to Seminarians. Omaha, NE: Institute for Priestly Formation, 2023. 

“Romanticism and the ‘Sacramental Imagination,’” The New Ressourcement, 1.2 (Summer 2024): 356-394.

“The Sacramental Principle,” Communio: International Catholic Review 50.1 (Spring 2023): 67-111.

“Maurice Blondel and His Prodigal Children: Phenomenology, Charity, and Metaphysics,” Theological Studies 82.2 (June 2021): 310-331.