Jean Francois Menard Books

Harry Potter est orphelin. Il mène une vie bien monotone, chez son oncle et sa tante et leur horrible fils. Le jour de ses onze ans, son existence bascule : un géant vient le chercher pour l'emmene...

Harry Potter et le Prisonnier d Azkaban

By J. K. Rowling, Jean Francois Menard

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Sirius Black, un dangereux criminel proche de Voldemort, s'est échappé de la forteresse d'Azkaban et recherche Harry Potter. La troisième rentrée de notre célèbre sorcier à l'école Poudlard est don...

JE DETESTE L ECOLE

By Jeanne Willis, Tony Ross, Jean Francois Menard

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Le voleur de chapeaux

By Jean Francois Menard

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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.