Louisa Campbell Books

Gargoyles' Christmas

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Soured on Christmas, three New York City gargoyles begin to change their mind about the holiday after Santa Claus helps them out of a mess of their own making.

New York State

By Louisa Campbell

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A world of holidays!

By Louisa Campbell

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New York State Insight Guide Insight Guides

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Happy Bus

By Louisa Campbell

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Gargoyles Christmas

By Bridget S. Taylor, Louisa Campbell

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Roots of Nationhood

By Dene Wright, Louisa Campbell, Nicola A. Hall

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Roots of Nationhood

By Dene Wright, Louisa Campbell, Nicola A. Hall

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Creating Material Worlds

By Adrian Maldonado, Elizabeth Pierce, Russell Anthony, Louisa Campbell, Anthony Russell

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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.