Olivier Hanne Books

Innocent III

By Olivier Hanne

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Mahomet

By Olivier Hanne

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De la guerre au Moyen Age

By Olivier Hanne

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Jacques Gelu de la venue de Jeanne

By Olivier Hanne

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"En février 1429, Jeanne d'Arc se présente devant Charles VII, se disant envoyée du Ciel pour libérer Orléans. Mais la jeune fille vient-elle vraiment de Dieu ou n'est-elle pas plutôt le jouet de f...

De Lothaire a Innocent III

By Olivier Hanne

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Mysteries of the Mass and the Four Kinds of Marriage

By Olivier Hanne, David Foley, Peter A. Kwasniewski, Innocent

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Mali une paix a gagner

By Jean Paul Laborde, Olivier Hanne

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L Alcoran

By Olivier Hanne

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Jeanne d Arc

By Olivier Hanne

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Jeanne d Arc

By Olivier Hanne

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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.