About Us
Those who still enjoy holding a physical book in hand, feeling the soft paper, marking a passage with pen or pencil or highlighter, dog-earring a favorite page—such readers discover, in university libraries, at used bookstores, or by lucky links online, a lot of hidden gems: books that were first published 50, 75, 100 years ago or more, which have long since fallen out of print and yet deserve to be back in print for new readers. This is all the more true today, when conservative and traditional Catholics are searching for substantial, reliable, and profound writing after decades of featherweight pablum and heavyweight heresy.
Plus, there are new challenges in our day, new issues to grapple with—and Divine Providence has raised up formidable Catholic thinkers to confront them. There are many great traditional publishers already but there is always room for one more, with specialties of its own.
For these reasons, we launched OS JUSTI PRESS, dedicated on the one hand to republishing old classics that are either totally out of print or exist only in crummy editions, and on the other hand to publishing new works that explain and defend Catholic Tradition.
Our new works include the popular Missal for Young Catholics, the anthology John Henry Newman on Worship, Reverence, and Ritual, multiple foreign-language translations of Dr. Kwasniewski’s tract True Obedience, and a new series called “Os Justi Studies in Catholic Tradition.”
International Editorial Advisory Board
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Dr. Michael G. Sirilla
Professor of Dogmatic and Systematic Theology at the Franciscan University of Steubenville in Ohio.
Sirilla earned his Ph.D. in historical and systematic theology at the Catholic University of America with a concentration in medieval theology and philosophy. He authored The Ideal Bishop: Aquinas’s Commentaries on the Pastoral Epistles for CUA Press’ Thomistic Ressourcement Series (2017). In addition to contributing chapters for numerous scholarly books, such as Thomas Aquinas: Biblical Theologian (Emmaus Academic, 2021) and Divinization: Becoming Icons of Christ Through the Liturgy (Hillenbrand Press, 2015), he has published articles in The Thomist and Anthropotes.
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Dr. John P. Joy
Dean of Faculty at St. Ambrose Academy in Madison, Wisconsin.
After studying at Ave Maria College (B.Phil.) and the International Theological Institute (S.T.M., S.T.L.), Joy earned his S.T.D. in dogmatic theology from the University of Fribourg, Switzerland. He is the author of On the Ordinary and Extraordinary Magisterium: From Joseph Kleutgen to the Second Vatican Council (2nd ed., Arouca Press, 2023), Disputed Question on Papal Infallibility (Os Justi, 2022), and The Atoning Death of Christ: St. Thomas’s Doctrine of Vicarious Satisfaction (Cruachan Hill, 2023), and he has published scholarly articles in Divinitas, Nova et Vetera, Seminary Journal, New Blackfriars, and Antiphon.
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Dr. Michael P. Foley
Professor of Patristics in the Great Texts Program at Baylor University.
Foley received his Ph.D. in systematic theology from Boston College and works mostly on the thought of Saint Augustine of Hippo and sacred liturgy. Foley is the author of over five hundred articles and eighteen books, including the four-volume Cassiciacum Dialogues of St. Augustine (Yale University Press, 2019-2020), Lost in Translation: Meditating on the Orations of the Traditional Roman Rite (Angelico Press, 2023) and, on the lighter side, Drinking with the Saints: The Sinner’s Guide to a Holy Happy Hour (Regnery, 2015).
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Dr. Tomasz Dekert
Assistant Professor at the Institute of Cultural Studies of the Jesuit University Ignatianum in Kraków.
Dekert ia a graduate of Religious Studies at the Jagiellonian University (Kraków, Poland), where he earned his PhD in 2009. He is the author of The Theory of Recapitulation in Irenaeus of Lyons in the Light of Ancient Conceptions of Adam (in Polish; Wydawnictwo WAM, 2007), Apostasy in Irenaeus of Lyons’ “Adversus Haereses” (in Polish; Wydawnictwo Nomos, 2016), and Liturgical Peace, Liturgical War: Benedict XVI’s Summorum Pontificum and Its Critics (T&T Clark Bloomsbury, 2026), as well as numerous other publications, including articles in Polish Journal of the Arts and Culture, Forum Philosophicum, Nova et Vetera, Religion & Literature, Religion & Theology, and Religions.
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Matthew Hazell
Independent scholar based in the United Kingdom.
Hazell has a B.A. (Hons.) in Biblical and Applied Theology from the University of Bangor (Wales), and an M.A. in Biblical Studies (Research) from the University of Sheffield (England). He is the editor of The Sacrifice of the Mass (Smenos Publications, 2024), the most recent proceedings of the Fota International Liturgical Conference, at which he has presented numerous papers on the post-Vatican II liturgical reforms, and is an Associate Member of the Society for Catholic Liturgy. He has also had scholarly articles published in Antiphon: A Journal for Liturgical Renewal.
