Catherine Cooper Books

The lost treasure of Annwn

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Many centuries ago, one of Annwn's greatest treasures, a golden torc, was broken into three pieces and hidden away for safe keeping. If Jack Brenin can find the pieces and remake this lost treasure...

The Chalet Lib E

By Catherine Cooper, Rich Keeble

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Chalet

By Catherine Cooper

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Chalet

By Catherine Cooper

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Chalet

By Catherine Cooper

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Chateau

By Catherine Cooper

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Cruise

By Catherine Cooper

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Cruise

By Catherine Cooper

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Untitled Book 4

By Catherine Cooper

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Island

By Catherine Cooper

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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.