O Brien Gregory Books

A nest of singing birds
A nest of singing birds

By O Brien Gregory

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Lenin lives!
Lenin lives!

By O Brien Gregory

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Lands & deeds
Lands & deeds

By O Brien Gregory

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Days beside water
Days beside water

By O Brien Gregory

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Big Weather
Big Weather

By O Brien Gregory

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Premenstrual Syndromes
Premenstrual Syndromes

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West s Federal Taxation
West s Federal Taxation

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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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