Helene Montardre Books

Pour tout savoir sur l'un des plus grands empires de l'Antiquité. Raconte comment les bergers des collines se sont transformés en un peuple de conquérants et de bâtisseurs ; comment, de l'Espagne à...

Quelle panique

By Helene Montardre, Herve Le Goff

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La quete aux coquelicots

By Helene Montardre

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Un train qui s'arrête en pleine nature, un garçon qui s'en échappe et voilà le "retour aux sources" non prémédité d'un adolescent parisien. Dans ce roman pour jeunes, l'auteur a chanté avant tout l...

La quete aux coquelicots

By Helene Montardre

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Mille ans de frissons

By Helene Montardre, Jean Louis Henriot

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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.