Judith GUEYFIER Books

Un tres beau jour

By Judith GUEYFIER, Marie France Painset

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Je suis un enfant de partout

By Judith Gueyfier

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LE BUFFLON BLANC

By Judith GUEYFIER, Fabienne THIERY

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Martin des colibris

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Ses yeux cherchent toujours des oiseaux dans le ciel. Et sa main s'applique à les dessiner sur les pages de ses cahiers. Martin est un enfant qui rêve d'aller à la rencontre de tous les oiseaux du...

AH QUELLE SOUPE LES AMIS

By Judith GUEYFIER, Alain SERRES

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TU VOYAGES COMMENT

By Judith GUEYFIER

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Tu preferes quel arbre

By Judith GUEYFIER

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Leger comme un flocon

By Judith Gueyfier

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Recueil de poèmes qui sont autant d'invitations au voyage et à l'évasion.

Devinez moi

By Jean Marie Henry

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La 4ème de couv. indique : "Depuis des siècles, les humains ont peuplé les paysages du monde de devinettes, comme autant de graines d'émerveillement, de sourires ou d'étonnements sur la vie. En che...

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.