Brian Patrick McGuire Books

Jean Gerson And the Last Medieval Reformation
Jean Gerson And the Last Medieval Reformation
Jean Gerson
Jean Gerson

By Brian Patrick McGuire

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Jean Gerson
Lost in the land of Oz
Lost in the land of Oz

By Madonna Kolbenschlag

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Each age finds saints suited to its needs. In our own time Aelred of Rievaulx has received a great deal of scholarly, if not quite popular, attention. He has been called the "patron saint of friend...

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Brother Lover
Brother Lover

By Brian P Mcguire

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The Dynamics of Resource Tenure in West Africa
Friendship and Faith
The difficult saint
The Difficult Saint

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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.

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