Philippe Oriol Books

La feuille qui ne tremblait pas

By Jean Jacques Lefrere

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Bernard Lazare

By Philippe Oriol

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L Histoire de l affaire Dreyfus de 1894 a nos jours

By Philippe Oriol

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J accuse Emile zola et l affaire dreyfus

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Bernard Lazare

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Si Berard Lazare commence a étre connu, il reste encore énormément a dire et à savoir à son sujet. Par le biais de la publication de textes rares ou inédits — correspondance avec Drumont ou Alired...

Juifs et antisemites

By Bernard Lazare, Philippe Oriol

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L histoire de l affaire Dreyfus

By Philippe Oriol

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Le faux ami du capitaine Dreyfus

By Philippe Oriol

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Jehan Rictus

By Philippe Oriol

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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.