Klaus Kordon Books

Les journees de Frank n en finissent pas

By Klaus Kordon

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Lutt ou Le secret de la pleine lune

By Klaus Gordon

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Comme un Indien

By Klaus Kordon

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En arrivant près du lac où il va passer ses vacances, Axel est morose. Pour plaire à son père, il va devoir installer la tente d'Indien qu'il a reçue en cadeau à Noël et surtout apprendre à nager....

1848. Die Geschichte von Jette und Frieder

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Joss oder Der Preis der Freiheit

By Klaus Kordon

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Gullivers Bucher Bd.30 Die Reise zur Wunderinsel

By Klaus Kordon

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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.