Rudolf Leopold Books

Christian Schad

By Christian Schad

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Francico de Goya - Aufkl arer ohne Hoffnung: die grafischen Zyklen

By Rudolf Leopold

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Egon Schiele: The Leopold Collection, Vienna

By Magdalena Dabrowski

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One of the major figures of Austrian Expressionism, Egon Schiele developed a highly personal and expressive style, a style that reflected the sexual and psychological tension explored in the writin...

Leopold. Masterpieces from the Leopold Museum in Vienna

By Rudolf Leopold, Romana Schuler

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Egon Schiele, Gemalde, Aquarelle, Zeichnungen.

By Rudolf Leopold

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Egon Schiele

By Rudolf Leopold

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Alfred Kubin

By Leopold Rudolf Schuler Romana, Alfred Kubin

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Egon Schiele

By Rudolf Leopold, Egon Schiele

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Egon Schiele

By Rudolf Leopold

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Koloman Moser 1868 1918

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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.