Christian Roche Books

La visite

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Chaque semaine Clara, avec sa mère et son frère va rendre visite à son père qui est en prison, le chemin est long et le temps de parloir est trop court. L'univers carcéral à travers les yeux d'une...

L Afrique noire et la France au XIXe siecle

By Christian Roche

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Le Senegal a la conquete de son independance

By Christian Roche

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Instructor's Mannual to Accompany Debuts: An Introduction to French

By Siskin

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MEMO REVISIONS PHILO TER ES S

By Christian Roche

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Sagesses et Malices de Socrate le Philosophe de la Rue

By Jean Jacques Barrere

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Jeu de l Oie Contemporain

By Suzanne Morand, Regine Lacroix Neuberth, Christian Roche

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Paul Vigne d'Octon

By Christian Roche

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Amai

By Christian Roche

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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.