Daniel O Brien Books

By The Dawn s Early Light

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The true story of the demise of the first americans between the years of 1860-1890. a journey from birth to death with Crazy Horse. This brilliantly researched novel charts the battle for land dur...

Your presidential fantasy dream team

By Daniel O Brien

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What if a zombie apocalypse or a robot uprising threatened the nation and you had the power to recruit some of the nation s finest presidents to help save the day? By studying the most successful s...

Spooky Encounters

By Daniel O Brien

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SF UK

By Daniel O Brien

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The Hannibal Files

By Daniel O Brien, Adrian Rigelsford

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Cameron Diaz

By Daniel O Brien

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Halle Berry

By Daniel O Brien

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Pink Floyd

By Daniel O Brien, Jeff Bench

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Daniel Craig

By Daniel O Brien

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The Hannibal files

By Daniel O Brien

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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.