Helene Millet Books

Le vote de la soustraction d'obedience en 1398

By Helene Millet

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Successeurs du pape aux ours

By Helene Millet

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Le concile de Pise

By Helene Millet

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L eglise du grand schisme

By Helene Millet

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La Vierge au manteau du Puy en Velay

By Helene Millet

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"Parmi ses nombreux trésors, le musée Crozatier du Puy-en-Velay possède une Vierge au manteau qui depuis plus d'un siècle intrigue historiens et historiens de l'art. Une enquête pluridisciplinaire...

Livre des propheties des papes de la Bibliotheque municipale de Lunel

By Helene Millet

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Canonici al servizio dello Stato in Europa secoli XIII-XVI

By Helene Millet

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Il libro delle immagini dei papi

By Helene Millet

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Humanisme et politique a la fin du Moyen Age

By Carla Bozzolo, Nicole Grevy Pons, Helene Millet, Claude Gauvard

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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.