Hannah Whittock Books

The Vikings

By Hannah Whittock, Martyn Whittock

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The Vikings

By Hannah Whittock, Martyn Whittock

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Tales of Valhalla

By Martyn J. Whittock

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Valhalla and its pantheon of gods and heroes have always fascinated readers, whether it is how these tales illuminate the Viking world or influence cultural touchstones like J. R. R. Tolkien, whose...

Los vikingos

By Hannah Whittock, Martin Whittock, David Cerda Garcia

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1016 And 1066

By Hannah Whittock, Martyn Whittock

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Vikings

By Hannah Whittock, Martyn Whittock

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Viking Blitzkrieg

By Hannah Whittock, Martyn Whittock

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Viking Blitzkrieg

By Hannah Whittock, Martyn Whittock

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Norse Myths and Legends

By Hannah Whittock, Martyn Whittock

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Norse Myths and Legends

By Martyn Whittock

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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.