Gérald Guerlais Books

The Other Side of the Story

By Nancy Loewen, Trisha Sue Speed Shaskan, Eric Braun

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Embrouilles et dragons

By Colin Fabrice Romancier

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Bienvenue chez les Petits Monstres ! Toujours partants pour l'aventure, rien ne leur fait peur, pas même un mystérieux oeuf de dragon dont ils devraient pourtant se méfier ! (4ème de couv.)

Tome 1 lisa et le gatovore

By James Benoit, Gerald Guerlais

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Todo respuestas.150 preguntas sobre futbol

By Francesc Figueroba Rubio, Patrick Chenot, Fabrice Mosca, Gerald Guerlais, Larousse Editorial

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Todo respuestas.100 preguntas sobre los dinosaurios

By Romain Guyard, Fabrice Mosca, Gerald Guerlais, Larousse Editorial, Laurent Richard, Ana Maria Peris Moreno

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Los increibles enigmas de Sherlock Holmes

By Francesc Figueroba Rubio, Gerald Guerlais, Larousse Editorial

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Els increibles enigmes de Sherlock Holmes

By Francesc Figueroba Rubio, Gerald Guerlais, Larousse Editorial

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La vuelta al mundo de Sherlock Holmes

By Gerald Guerlais, Larousse Editorial, Ana Maria Peris Moreno

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Tot respostes.150 preguntes sobre animals

By Matthieu Roda, Romain Guyard, Fabrice Mosca, Gerald Guerlais, Judicael Porte, Shutterstock, Larousse Editorial, Laurent Richard, Ana Maria Peris Moreno

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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.