Justin Cartwright Books

To Heaven By Water

By Justin Cartwright

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Other people s money

By Justin Cartwright

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Lion heart

By Justin Cartwright

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Richie Cathar was named after his father's hero, Richard the Lionheart. His father, Alaric, believed that Richard and Robin Hood had met and found a document which was to prove this. In his father'...

Lion heart

By Justin Cartwright

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To heaven by water

By Justin Cartwright

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Other people s money

By Justin Cartwright

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The upper-crust, family-owned bank of Tubal & Co. in the City of London, is in trouble. It's not the first time in its three hundred and forty year history, but it may be the last. A secret sale is...

Other People's Money

By Justin Cartwright

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Other People s Money

By Justin Cartwright, John Telfer

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To Heaven by Water

By Justin Cartwright, Nigel Anthony

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The promise of happiness

By Justin Cartwright

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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.