James O Donnell Books

The Day John Met Paul

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Beginning in the hours before dawn, O'Donnell tells the story of this historic meeting, and the deeper story of how each boy was brought to this moment when music took control of their lives. In th...

The War for Gaul

By James O Donnell, Julius Caesar

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Classic Irish Proverbs

By James O Donnell

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Classic Irish proverbs

By James O Donnell

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Letters for Lizzie

By James O Donnell

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Mr Particular

By James O Donnell

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Signal Girl

By James O Donnell

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War for Gaul

By James O Donnell, Julius Caesar

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Statistics

By James O Donnell

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The shortest investment book ever

By James O Donnell

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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.