Ina Hesselmann Books

Karl Fred Dahmen

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Karl Fred Dahmen (1917-1981) zählt zu den bedeutendsten Künstlern des deutschen Informels. Als Maler, Grafiker und Objektkünstler schuf er ein ausserordentlich umfassendes und vielseitiges Werk. Zu...

Rolf Gunter Dienst

By Rolf Gunter Dienst, Walter Smerling, Ina Hesselmann

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Als Maler und Zeichner ist Rolf-Gunter Dienst (1942-2016) einer der prägenden Vertreter der Konkreten Kunst in Europa. Unverwechselbares Element seiner Werke ist ein von ihm erfundenes skripturales...

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.