Roger Duvoisin Books

Lonely Veronica
Lonely Veronica

By Roger Duvoisin

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Veronica's smile
Veronica's smile

By Roger Duvoisin

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The crocodile in the tree
The crocodile in the tree

By Roger Duvoisin

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Petunia's treasure
Petunia's treasure

By Roger Duvoisin

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Hector Penguin
Hector Penguin

By Louise Fatio, Roger Duvoisin

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Jasmine
Jasmine

By Roger Duvoisin

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Petunia, Beware!
Petunia, Beware!

By Roger Duvoisin

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Related Articles from our Blog

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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