Valerie Cohen Books

Qu est ce que resister

By Jose Angel Calderon, Valerie Cohen

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La formation en entreprise

By Valerie Cohen

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Monsieur a la migraine

By Valerie Cohen

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Qu importe la couleur du ciel

By Valerie Cohen

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Alice et l homme perle

By Valerie Cohen

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Alice, Juliette et Gisèle partagent leur quotidien dans une Résidence pour sexagénaires argentés de Saint-Germain-en-Laye. Lorsqu?elle commence à oublier la couleur des yeux d?un ancien amant, Alic...

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.