Werner Grunzweig Books

Frank Michael Beyer

By Werner Grunzweig, Daniela Reinhold

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Artur Schnabel

By Werner Grunzweig

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Wie entsteht dabei Musik

By Werner Grunzweig

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Ahnung und Wissen, Geist und Form

By Werner Grunzweig

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Eduard Erdmann

By Gerhard Gensch, Werner Grunzweig

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Der aus Lettland stammende Komponist und Pianist Eduard Erdmann (1896-1958) avancierte zu einem wirkungsreichen Förderer zeitgenössischer Musik (u.a. 1921-23 Juror in Donaueschingen). 1914 kam er n...

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.