Mark Chadbourn Books

Scissorman

By Mark Chadbourn

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The devil s looking glass

By Mark Chadbourn

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1593: The dreaded alchemist, black magician and spy Dr John Dee is missing. Terror sweeps through the court of Queen Elizabeth, for in Dee's possession is an obsidian mirror, a mysterious object of...

Devil in Green

By Mark Chadbourn

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World s End

By Mark Chadbourn

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Silver Skull

By Mark Chadbourn

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Queen of Sinister

By Mark Chadbourn

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Devil s Looking Glass

By Mark Chadbourn

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Always Forever

By Mark Chadbourn

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Scar Crow Men

By Mark Chadbourn

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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.