Sheila Campbell Books

Retreats That Work is a practical, easy-to-use guide, full of step-by-step instructions for leading a wide variety of tested exercises. You'll learn how to design and facilitate retreats that will...

The Messy Room A Download from Retreats That Work

By Merianne Liteman, Sheila Campbell, Steve Sugar

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Retreats That Work

By Merianne Liteman, Sheila Campbell, Jeffrey Liteman

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The mosaics of Antioch

By Sheila D. Campbell

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Mosaics of Aphrodisias in Caria

By Sheila D. Campbell

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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.