Gesa Bartholomeyczik Books

Franz Bernhard

By Franz Bernhard, Gesa Bartholomeyczik, Gerard A. Goodrow, Andreas C. H. Schell, Georg Elben

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Materialkonzepte

By Gesa Bartholomeyczik

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Zwischen Madonna und Mutter Courage

By Elke Kleinau, Gesa Bartholomeyczik, Anja Herrmann, Gabriele Jonas, Karla Verlinden

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Content: Klara Drenker-Nagels "Vorwort" / Gesa Batholomeyczik, "Zwischen Madonna und Mutter Courage - Bilder von der Mutterschaft in der ersten Hälfte des 20. Jahrhunderts" / Elke Kleinau u.a., "Mu...

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.