Otto Heller Books

Henrik Ibsen
Henrik Ibsen

By Otto Heller

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Prophets of dissent
Prophets of dissent

By Otto Heller

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Faust and Faustus
Faust and Faustus

By Heller Otto

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Prophets of Dissent
Prophets of Dissent

By Otto Heller

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Prophets of Dissent
Prophets of Dissent

By Otto Heller

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Henrik Ibsen
Henrik Ibsen

By Otto Heller

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Schwiegersohn
Schwiegersohn

By Otto Heller, Rudolf Baumbach

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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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