John OBrien Books

Interviews With Black Writers

By John O'Brien, John OBrien

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Festival Legends: Songs & Stories

By John O'Brien, John OBrien, O'Brien, John Jr.

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festival Legends; Songs& Storiesthere Are Over Fifty Million American's Of Irish Descent In The United States Alone. The Flourishing Of Irish Festivals Throughout The World, But Especially In The U...

Discrimination In Northern Ireland, 1920-1939: Myth Or Reality?

By John O'Brien, John OBrien, O'Brien, John (Lecturer In Religious Studies)

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By John O'brien. Includes Bibliographical References.

Analytical Psychology of Football

By Nada OBrien, John OBrien

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Christianity and Social Democracy

By John OBrien

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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.