Katie Warner Books

This creative book, which contains some surprise interactive elements that your child will love, will become an invaluable resource to your family prayer life. Katie Warner, noted Catholic author o...

Lily Lolek

By Katie Warner

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"This is the story of Lily Lolek. There was nothing that she wanted more than to love with her might and to burst with God's joy 'til the day she reached heaven's big door. But is being a saint as...

I Went to Mass

By Katie Warner

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A delightful tour through a Catholic church from the perspective of a little boy in awe of all there is to see and love at Mass, I Went to Mass takes a story approach to learning the parts of a chu...

Parent Who Prays

By Katie Warner

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My True Love Gave to Me

By Elizabeth Zelasko, Katie Warner

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Padre y una Madre Que Oran

By Katie Warner, Rose Ocana Cortes

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Godparent Who Prays

By Katie Warner

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Sponsor Who Prays

By Katie Warner

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Teacher Who Prays

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.