Ricardo Siqueira Books

Fortes e farois
Fortes e farois

By Ricardo Siqueira

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Monumentos geologicos
Monumentos geologicos

By Ricardo Siqueira

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Caminhos
Caminhos

By Ricardo Siqueira

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Rio de Janeiro
Rio de Janeiro

By Alberto A. Cohen

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Ponha se na rua
Ponha se na rua

By Ricardo Siqueira

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Brasil geologico
Brasil geologico

By Ricardo Siqueira

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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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