Dirk Mellies Books

Modernisierung in der preussischen Provinz

By Dirk Mellies

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Trojanische Pferde der DDR

By Mellies

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Anhand der Geschichte der Deutschen Volkszeitung (heute Freitag) des Reichskanzlers a.D. Joseph Wirth zeigt diese Studie, wie die DDR versuchte, auf das pazifistisch-neutralistische Spektrum der BR...

Greifswald 1989

By Frank Moller, Dirk Mellies

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Wo Bleibt Die Aufklarung

By Niels Hegewisch, Luise Guth, Hedwig Richter, Knut Langewand, Dirk Mellies

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Modernisierung in der PreuIschen Provinz

By Dirk Mellies

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Greifswald 1989

By Frank Moller, Dirk Mellies

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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.