J. Gregory Keyes Books

Newton s Cannon
Newton s Cannon

By J. Gregory Keyes

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Calculus of Angels
Calculus of Angels

By J. Gregory Keyes

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Empire of Unreason
Empire of Unreason

By J. Gregory Keyes

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Shadows of God
Shadows of God

By J. Gregory Keyes

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Empire of Unreason
Empire of Unreason

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Shadows of God
Shadows of God

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Age of Unreason
Age of Unreason

By J. Gregory Keyes

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Footsteps in the Sky
Footsteps in the Sky

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Waterborn
Waterborn

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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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