Gillian O Brien Books

Georgian Dublin

By Gillian O Brien

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Portraits of the city

By Finola O Kane, Gillian O Brien

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"The book places Dublin at the centre of a discussion about the significance of the historic urban landscape. Bringing together experts in art history, architectural history, urban studies, literat...

Blood Runs Green

By Gillian O Brien

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Blood Runs Green

By Gillian O Brien

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Blood Runs Green

By Gillian O Brien

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Darkness Echoing

By Gillian O Brien

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Undiscovered Country

By Gillian O Brien

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Darkness Echoing

By Gillian 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.