Jean Marc Mathis Books

Hou l animal

By Jean Marc Mathis

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Le chien qui souriait a l envers

By Jean Marc Mathis

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Un gentil chien n'a qu'un seul rêve : devenir champion du monde de patinage. Malheureusement il sourit à l'envers, cela effraie tout le monde et l'éloigne des compétitions. Mais, déterminé, il part...

Lucien le pingouin au pays soleil

By Jean Marc Mathis

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Lucien le pingouin tome 4

By Jean Marc Mathis

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Claude Zilla

By Dylan Pelot, Jean Marc Mathis

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Lucien et le bonhomme de neige sauvage

By Jean Marc Mathis

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Lucien le pingouin musicien

By Jean Marc Mathis

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Lucien le pingouin musicien

By Jean Marc Mathis

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Le Chien qui Souriait a l envers

By Dylan Pelot, Jean Marc Mathis

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Lucien le pingouin musicien collector 3 titres

By Jean Marc Mathis

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

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.