Charlotte Guillain Books

Vikings

By Charlotte Guillain

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Gladiators and Roman soldiers

By Charlotte Guillain

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Medieval knights

By Charlotte Guillain

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Chivalrous protectors as well as mercenaries, medieval knights could be loyal and humble, but also selfish and violent. Delve into their world and find out which segment of society became knights,...

Ninja

By Charlotte Guillain

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Samurai

By Charlotte Guillain

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Aztec warriors

By Charlotte Guillain

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Simple introduction, for younger children, to the lives and place of soldiers in Aztec times.

Minibeast babies

By Charlotte Guillain

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Our Hearts

By Charlotte Guillain

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Dragons

By Charlotte Guillain

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Vampires

By Charlotte Guillain

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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.