Leonore Koschnick Books

Friedrich der Grosse

By Thomas Weissbrich, Arnulf Scriba, Leonore Koschnick

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Deutsches Historisches Museum Berlin

By Walther Fnrst

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Gier nach neuen Bildern

By Jutta Scherrer, Benjamin Mortzfeld, Leonore Koschnick

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"Bilder sind heute im Nachrichtengeschäft unverzichtbar. Seit rund 130 Jahren wird der Bildjournalismus von Fotos bestimmt. Doch wie arbeitete die Bildpresse vor der Erfindung der Fotografie? Die N...

German Historical Museum

By Leonore Koschnick

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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.