Hans J Schwalm Books

Im Zeichen der Abstraktion Die Kunstlergruppe junger westen 1948 bis 1962

By Prof. Dr. Ferdinand Ullrich, Dr. Hans Jurgen Schwalm

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Das Kriegsende als oft beschworene „Stunde Null“ bedeutete auch im Ruhrgebiet einen Neubeginn für die Kunst, die Ausstellungs- und Sammlungstätigkeit. Bereits 1948 gründete sich in Recklinghausen d...

Waldo Bien

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Per Kirkeby: Kunstausstellung der Ruhrfestspiele 94 Recklinghausen

By Per Kirkeby, Troels Andersen, Ferdinand Ullrich, Ane Hejlskov Larsen, Egon Furstenberg, Hans J Schwalm, Paul Th Andriesse

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Ayse Erkmen: I-MA-GES

By Ferdinand Ullrich, Ayse Erkmen, Utopia, Hans J Schwalm, Hadiye Cangokce, Tulin Alilar

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Henry Moore: Liegende

By Arie Hartog, Henry Moore, Hermann Polking, Ferdinand Ullrich, Hans J Schwalm

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Artefakte

By Boris Becker

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Tatsuo Miyajima Time Train

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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.