Jean Luc Coudray Books

A Goofy Guide to Penguins

By Jean Luc Coudray And Illstrated By Philippe Coudray

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How can you tell penguins apart? By the color of their mittens, of course! But do penguins really play hide-and-seek, carry pink umbrellas, and shower on the backs of whales? In this wild guide, tw...

L avenir est notre poubelle

By Jean Luc Coudray

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Le mouton Marcel

By Jean Luc Coudray

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Nous sommes tous morts

By Jean Luc Coudray, Lewis Trondheim

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Monsieur Mouche

By Jean Luc Coudray

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Survivre chez soi

By Isabelle Merlet, Jean Luc Coudray

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Je n ai plus besoin de moi

By Jean Luc Coudray

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Les histoires de Monsieur Mouche

By Jean Luc Coudray

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In a series of brief stories Monsieur Mouche makes observations about life.

Tractatus biologico metaphysicus

By Jean Luc Coudray

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Le Major et les extraterrestres

By Jean Luc Coudray, Emmanuel Reuze

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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.