Christine Naumann Villemin Books

Toutes les nuits, l'ourson Léo finit sa nuit dans la chambre de ses parents. Parce qu'il a mal à sa piqûre de moustique, ou alors il a trop chaud, ou trop soif... les prétextes varient, mais jamais...

Mademoiselle princesse ne veut pas manger

By Christine Naumann Villemin

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La princesse Eliette n'aime pas manger les légumes ni la viande, par contre elle raffole des sucreries. Face à ses caprices, ses parents sont plus qu'exaspérés. Autant donner de "la confiture à des...

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.