Stephane Guegan Books

"Les Arts sous l'Occupation retrace le destin, au jour le jour, des artistes, des cinéastes, des écrivains et des dramaturges au coeur des "années noires". Véritable enquête de terrain, ce livre ba...

Impressionism

By Stephane Guegan, Patry Sylvie, Sylvie Patry

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Pas de deux

By Emily A. Beeny, Stephane Guegan

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Theophile Gautier

By Stephane Guegan

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Joris Karl Huysmans

By Andre Guyaux, Stephane Guegan

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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.