John Greer Books

John Greer, reconciliation
John Greer, reconciliation

By John Greer

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Corpus Hermeticum
Corpus Hermeticum

By John Greer, G. Mead

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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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