Didier Conrad Books

Bombay, 1831. Alexander Martin, agent de l'Indian Political Service, poursuit son enque te dans la compagnie des Indes orientales. Il est charge de retrouver trois notables de la colonie, disparus...

Tigresse Blanche Cycle 1 Tome 4 Une espionne sur le toit

By Wilbur, Conrad Didier

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L annee du Phenix

By Wilbur

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La suite des aventures d'Alix Yin Fu, jeune et naïve espionne chinoise, à l'époque de Tchang Kaï-Chek et des triades.

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.