Christopher Wormell Books

Un poisson tres doue

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C'est l'histoire d'un poisson très doué qui vivait il y a très longtemps. Il savait chanter, danser, dessiner, jouer la comédie. Mais son rêve ne pouvait s'accomplir. Il voulait par-dessus tout mar...

L enfant des cavernes

By Christopher Wormell

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Une fillette de l'époque de l'homme des cavernes croit être seule avec son chien dans l'immensité des montagnes environnantes, jusqu'au jour où une maman grizzly, à la recherche de son ourson, la s...

L enfant des cavernes

By Christopher Wormell

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Drei dicke Freunde.

By Christopher Wormell

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Das Kriegsgeschehen 2002. Daten und Tendenzen der Kriege und bewaffneten Konflikte.

By Christopher Wormell, Wolfgang Schreiber

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Pjuskebjorn og bolden der blev vaek

By Christopher Wormell

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Een bos vol enge wilde beesten Gottmer prentenboek

By Christopher Wormell

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One smart fish

By Christopher Wormell

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A smart fish who longs to explore the world beyond the ocean discovers he can use his fins to walk on land. Suggested level: junior, primary.

Off to the Fair

By Christopher Wormell

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Secret Commonwealth

By Christopher Wormell, Philip Pullman

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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.