Author: Peter Kwasniewski, PhD

Dr. Peter Kwasniewski is a graduate of Thomas Aquinas College and The Catholic University of America who taught at the International Theological Institute in Austria, the Franciscan University of Steubenville’s Austria Program, and Wyoming Catholic College, which he helped establish in 2006. Today he is a full-time writer and speaker on traditional Catholicism whose work appears online at, among others, OnePeterFiveNew Liturgical MovementLifeSiteNewsThe Remnant, and Catholic Family News. He has published eighteen books, including Reclaiming Our Roman Catholic Birthright: The Genius and Timeliness of the Traditional Latin Mass (Angelico, 2020), The Ecstasy of Love in the Thought of Thomas Aquinas (Emmaus, 2021), and Are Canonizations Infallible? Revisiting a Disputed Question (Arouca, 2021). His work has been translated into at least eighteen languages. Visit his website at