Christophe Gallaz Books

Rose Blanche

By Richard Graglia, Roberto Innocenti, Christophe Gallaz, Martha Coventry

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During World War II, a young German girl's curiosity leads her to discover something far more terrible than the day-to-day hardships and privations that she and her neighbors have experienced.

Cela commence par--

By Christophe Gallaz

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Rose Blanche

By Roberto Innocenti, Christophe Gallaz

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Christophe Gallaz entretiens avec Edmond Kaiser

By Christophe Gallaz, Edmond Kaiser

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La parole detruite

By Christophe Gallaz

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Sculpteur de musiques

By Christophe Gallaz

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Les chagrins magnifiques

By Christophe Gallaz

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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.