Mary McCaffrey Books

Smoke-drift to heaven

By Mary McCaffrey

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Oneway to Rome

By Mary McCaffrey

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Night of the tiger

By Mary McCaffrey

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My brother Ange

By Mary McCaffrey

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When eleven-year-old Mick's little brother is hit by a car after the two boys fight, Mick is filled with remorse and vows to be good to him in the future.

My brother Ange

By Mary McCaffrey

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When eleven-year-old Mick's little brother is hit by a car after the two boys fight, Mick is filled with remorse and vows to be good to him in the future.

The mighty muddle

By Mary McCaffrey

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Jelly and the Leaf

By Grace Chen, Mary McCaffrey

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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.