Martelli/Roger Books

Communisme franc ?ais

By Roger Martelli

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Le communisme autrement

By Martelli Roger

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L occasion manquee

By Roger Martelli

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Comedie Francaise, Bressent 1833-1877

By Georges D' Heylli, Martelli/Roger

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Sur tout le continent européen, l’extrême droite a imposé l’idée que l’identité serait l’enjeu crucial des sociétés contemporaines. Le mouvement des hommes, stimulé par l’actuelle mondialisation, s...

Le PCF une enigme francaise

By Roger Martelli

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L'Identité, C'Est La Guerre

By Martelli/Roger

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L'Identité, C'Est La Guerre

By Roger Martelli, Martelli/Roger

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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.