Correspondence Books

Wilhelm Rott 25.1.1908 27.1.1967

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Sonne und Mond seien freundlich zu Ihnen liebe Freundin

By Hermann Hesse

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Karl Schmidt Rottluff

By Gerhard Wietek

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The postcard, which is being gradually replaced today by electronic media, had a particular significance for Expressionist artists. The unique hand-painted, drawn or watercolour compositions were n...

Otto Dix

By Otto Dix

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His grotesque and satirical paintings of the 1920s have long been entrenched in the public consciousness. But what were Otto Dix's (1891-1969) thoughts beyond the realms of art, and what were his o...

Der hurritische Brief des Dusratta von Mittanni an Amenhotep III

By Manfried Dietrich

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Nation Krieg und Revolution

By Gustav Landauer

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Gustav Landauers Verständnis von Nation entwickelte sich in Abgrenzung zu Nationalstaatlichkeit, Nationalismus und Ethnizität. Homogenität und Gleichmacherei im Rahmen bestehender Nationalstaaten s...

Schumann Briefedition

By Robert Schumann

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Schumann Briefedition

By Robert Schumann

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Schumann Briefedition

By Robert Schumann

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Schumann Briefedition

By Robert Schumann

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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.