MARK D. JORDAN Books

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By Mark D. Jordan

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Medieval Philosophy Theology Medieval Philosophy Theology No. 1

By Mark D. Jordan

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First volume of an annual journal devoted to original studies of medieval philosophy and theology. Encouraging a broad range of topics and approaches, it seeks to stimulate conversation and exchang...

Medieval Philosophy & Theology

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Authorizing Marriage

By Mark D. Jordan

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The Alledge Aristotelianism of Thomas Aquinas The Etienne Gilson Series 15

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Rewritten Theology

By Mark D. Jordan

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Seducing Augustine

By Virginia Burrus

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The Church s Confession of Faith

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Authorizing Marriage

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The Care of Souls and the Rhetoric of Moral Theology in Bonaventure and Thomas

By Mark Jordan

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.