Ullrich Wolfgang Books

Sammlung Viehof

By Ullrich Wolfgang, Philipp Kaiser, Dirk Luckow, Anthony DePasquale, Susanne Titz

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Uber das Morgen hinaus

By Ullrich Wolfgang, Harry Walter

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Rolf Poellet

By Ullrich Wolfgang, Thomas Wagner

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Thomas Sturm

By Ullrich Wolfgang, Christoph Narholz

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The Austrian artist Thomas Sturm travelled to the major European museums and, as any other tourist, viewed and photographed the paintings of the Old Masters. Once back in his studio in Berlin, howe...

Rechtslexikon fur den Immobilienmakler

By Ullrich Wolfgang

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Tiefer hangen

By Wolfgang Ullrich, Ullrich Wolfgang

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Gesucht Kunst

By Ullrich Wolfgang

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Alles nur Konsum

By Ullrich Wolfgang

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Uta von Naumburg

By Ullrich Wolfgang

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Bilder auf Weltreise

By Ullrich Wolfgang

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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.