Gerard Cogez Books

Ecrivains voyageurs au XXe siecle

By Gerard Cogez

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Marcel Proust, A la recherche du temps perdu

By Gerard Cogez

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Julien Gracq, Le rivage des Syrtes

By Gerard Cogez

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"L'oeuvre dramatique de l'écrivain et homme politique martiniquais Aimé Césaire (1913-2008) tient en une trilogie (à laquelle on peut ajouter Et les Chiens se taisaient, son premier essai d'écritur...

Gerard de Nerval

By Pablo Lopez Martinez, Gerard Cogez

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Leiris l indesirable

By Gerard Cogez

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Partir pour ecrire

By Gerard Cogez

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Leiris sur le lit d'Olympia

By Gerard Cogez

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Gerard Cogez commente Le temps retrouve de Marcel Proust

By Gerard Cogez

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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.