Olaf Fritsche Books

La huida de Leonardo

By Barbara Korthues, Olaf Fritsche

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El tesoro de Troya

By Olaf Fritsche

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Lily, Magnus, and Albert use the time tunnel to visit ancient Troy during the Trojan War, and then to join Heinrich Schliemann in the nineteenth century to search for the ruins of the ancient city...

Empire of Ants

By Olaf Fritsche, Susanne Foitzik

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Empire of Ants

By Olaf Fritsche, Susanne Foitzik

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Planet of the Ants

By Olaf Fritsche, Susanne Foitzik

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Empire of Ants

By Susanne Foitzik Fritsche

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Empire of Ants

By Olaf Fritsche, Susanne Foitzik

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Empire of Ants

By Olaf Fritsche, Susanne Foitzik

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Gibt es Geisterschiffe wirklich

By Olaf Fritsche

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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.