Leif Ryvarden Books

Norges isbreer
Norges isbreer

By Leif Ryvarden

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Kyst Norge
Kyst Norge

By Leif Ryvarden

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Kyst Norge
Kyst Norge

By Leif Ryvarden

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Kyst Norge
Kyst Norge

By Leif Ryvarden

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Alta-Kautokeino vassdraget
Alta-Kautokeino vassdraget

By Leif Ryvarden

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Jostedalsbreen
Jostedalsbreen

By Leif Ryvarden, Bjorn Wold

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Lofoten and Vesteralen
Lofoten and Vesteralen

By Leif Ryvarden

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Genera of Polypores
Genera of Polypores

By L. Ryvarden

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European Polypores
European Polypores

By L. Ryvarden

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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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