Sonia Delmas Books

Le Tresor de la murene

By Henri Galeron, Sonia Delmas

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Le Carnaval des voleurs

By Sonia Delmas, Pierre Mornet

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El Carnaval De Los Ladrones carnival of Thieves Cuentos Policiales

By Sonia Delmas

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Le desordre des jours

By Francoise Delmas

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Espagne, 1936. Plaqué au sol. Deux corps devenus continents se télescopent à Malasanque... Elle marche, jeudi de la Passion 1954 à l'heure où le ciel enroué se tache de rouille... Le Camp, une lett...

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.