Katie Warner Books

Cloud of Witnesses

By Meg Whalen, Katie Warner

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The Word of the Lord

By Meg Whalen, Katie Warner

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Father Ben Gets Ready for Mass

By Katie Warner

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Husbands and wives. Fathers and Mothers. Breadwinners and Homemakers. As men and women, we have many ways of approaching our roles in family life. But what if we could find even deeper meaning in o...

Jack Giorgio

By Amy Rodriguez, Katie Warner

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Jack Giorgio

By Katie Warner

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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.