Odile Hellmann Hurpoil Books

Le Gros Chagrin de Bastien

By Madeleine Brunelet, Odile Hellmann Hurpoil

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Victor Tropetit

By Odile Hellmann Hurpoil, Elisabeth Schlossberg

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Ric la terreur

By Odile Hellmann Hurpoil

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A l'école, Ric fait peur à tout le monde. Mais sous ses manières brutales, il a un coeur tendre et n'hésite pas à défendre ses copains contre les grands de CM2.

Le lapin Valentin

By Marcelle Geneste, Odile Hellmann Hurpoil

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Le voyage en savon

By Odile Hellmann Hurpoil

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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.