Marion Roman Books

Legendes de la Garde

By Marion Roman, David Petersen

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Abominable Maud tome 02

By Marion Roman, Clotilde Szymanski, A.B. Saddlewick

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Computation Proof Machine

By Marion Roman, Pierre Guillot, Gilles Dowek

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Computation Proof Machine

By Marion Roman, Pierre Guillot, Gilles Dowek

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Abominable Maud Tome 03

By Marion Roman, Clotilde Szymanski, A.B. Saddlewick

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Emprise du Passe

By Marion Roman, Charlotte Link

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Fun Jungle, Tome 01: Mais Qui A Tué Henri ?

By Stuart Gibbs, Marion Roman, Marie TOULY

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Une nouvelle série d'enquêtes, où mystère et humour se mêlent : bienvenue à Fun Jungle ! Code rouge à Fun Jungle, zoo le plus populaire des États-Unis : Henri l'hippopotame a été retrouvé mort ! Te...

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.