Jean Marc Narbonne Books

"Dès l'Antiquité, puis ensuite à l'âge classique, se développe toute une littérature qui aborde des questions relatives à la politique au travers de récits de fiction, satires ou utopies. Le récit...

Gnose et philosophie

By Jean Marc Narbonne, Paul Hubert Poirier, Martin Achard

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Levinas and the Greek Heritage Followed By One Hundred Years of Neoplatonism in France

By Wayne J. Hankey, Jean Marc Narbonne

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Esprit Critique Dans l Antiquite II

By Philippe Hoffmann, Olivier Boulnois, Claude Lafleur, Jean Marc Narbonne

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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.