Frank Witzel Books

Revolution und Heimarbeit

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Das ultimative Fanbuch in der Tradition von Teipels legendärem Verschwende Deine Jugend. Frank Witzel, Klaus Walter und Thomas Meinecke reden: über GEMACHTE MÄNNER mit Fönfrisuren oder echte Rocker...

Die Bundesrepublik Deutschland

By Frank Witzel

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Stille Tage in Cliche

By Witzel Frank.

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Tage ohne Ende

By Witzel Frank.

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Die sieben Weiber des Blaubart

By Ludwig Tieck

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Vondenloh

By Frank Witzel

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Direkt danach und kurz davor

By Frank Witzel

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Bluemoon Baby

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Die Erfindung der Roten Armee Fraktion durch einen manisch depressiven Teenager im Sommer 1969

By Frank Witzel

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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.