Jon M. Sweeney Books

Light in the Dark Ages

By Jon M. Sweeney

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Almost Catholic

By Jon M. Sweeney, Jon Sweeney

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The age of the spirit

By Phyllis Tickle

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A thousand years ago, the church experienced a time of tremendous upheaval called the Great Schism. The one faith became two churches, East and West, and the course of world history was forever cha...

James Martin SJ

By Jon M. Sweeney

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Phyllis Tickle

By Jon M. Sweeney

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Peter Faber

By Jon M. Sweeney

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Peter Faber

By Jon M. Sweeney

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Inventing Hell

By Jon M. Sweeney

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St. Francis of Assisi

By Jon Sweeney

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Thomas Merton

By Jon M. Sweeney

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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.