Geoffrey O Brien Books

The Phantom Empire
The Phantom Empire

By Geoffrey O Brien

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Dreamtime
Dreamtime

By Geoffrey O Brien

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Hardboiled America
Hardboiled America

By Geoffrey O Brien

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Hardboiled America
Hardboiled America

By Geoffrey O Brien

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Dream time
Dream time

By Geoffrey O Brien

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A Book of Maps
A Book of Maps

By Geoffrey O Brien

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The Hudson Mystery
The Hudson Mystery

By Geoffrey O Brien

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The Reader s Catalog
The Reader s Catalog

By Geoffrey O Brien

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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.

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