Christoph Wortberg Books

Novembernacht

By Christoph Wortberg

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Novembernacht

By Christoph Wortberg

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Wir neu a1 libro del alumno cd

By Christoph Wortberg

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Passwort Deutsch 1

By Ulrike Albrecht

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Comprehensive elementary German language course featuring 10 lessons with exercises, answers and transcripts. Accompanied by 2 audio CDs. Series also accompanied by interactive CD-ROM with exercise...

Passwort Deutsch in drei Banden

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Mittelpunkt

By Christoph Wortberg

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Geni l a1 libro del alumno

By Christoph Wortberg

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Tamtam. 2 CDs.

By Siegfried Buttner, Josef Alberti, Gabriele Kopp

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Der Ernst des Lebens macht auch keinen Spass

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Easy

By Christoph Wortberg

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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.