Jeff O Brien Books

Oberyl the Hammer
Oberyl the Hammer

By Jeff O Brien

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Harper and the Haunted Cape
Harper and the Haunted Cape

By Jeff O Brien

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City of Gold
City of Gold

By Jeff O Brien

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The Savior s Legacy
The Savior s Legacy

By Jeff O Brien

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Kage Majitsu 3
Kage Majitsu 3

By Brian Barr, Jeff O Brien

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Dead Woman s Hand
Dead Woman s Hand

By Brian Barr, Jeff 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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