Gisbert Porstmann Books

Stefan Plenkers

By Stefan Plenkers

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Eros - Macht - Askese: Geschlechterspannungen als Dialogstruktur in Kunst und Literatur

By Friedrich Mobius, Gisbert Porstmann, Camila Badstubner Kitzik

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Das Chorgestuhl des Magdeburger Domes: Ikonographie - Stilgeschichte - Deutung

By Gisbert Porstmann

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Existenz

By Gisbert Porstmann, Carolin Quermann

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Signal zum Aufbruch

By Johannes Schmidt, Gisbert Porstmann

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Die Dresdner Sezession - Gruppe 1919 wurde nur wenige Wochen nach der Novemberrevolution gegründet. Initiiert vom Maler Conrad Felixmüller fanden sich progressiv gesinnte Künstler zusammen, um die...

Willy Wolff zum Hundertsten: Malerei und Collagen, Zeichnungen und Monotypien, Skulpturen und Objekte. Ausstellungskatalog

By Gisbert Porstmann, Willy Wolff, Sigrid Walther

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Claus Weidensdorfer

By Claus Weidensdorfer

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Otto Griebel

By Johannes Schmidt, Gisbert Porstmann, Otto Griebel

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Otto Griebel was one of the most interesting artists of the nineteen-twenties and an important protagonist of Dada and New Objectivity in Dresden. Due to the destruction of a large portion of his o...

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.