Patrick O Farrell Books

The Catholic Church in Australia

By Patrick O Farrell, Patrick James O Farrell

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The Irish in Australia

By Patrick O Farrell

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The Irish in Australia

By Patrick O Farrell, Patrick James O Farrell

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"Since the first fleet of 1788, the Irish have been coming to Australia. They were the beginning of a central, colourful and profoundly influential element in Australia's evolution into a nation di...

Catholic Church and Community

By Patrick O Farrell, Patrick James O Farrell

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The Irish in Australia

By Patrick O Farrell

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Letters from Irish Australia

By Patrick O Farrell

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Irish in Australia

By Patrick O Farrell, Patrick James O Farrell

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Vanished Kingdoms

By Patrick O Farrell

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UNSW a Portrait

By Patrick O Farrell

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Unsw a Portrait

By Patrick O Farrell

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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.