Martin Guttmann Books

Clegg & Guttmann, corporate landscapes.

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Decomposition reconstitution, Berlin 1918

By Clegg Guttmann.

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Clegg & Guttmann

By Clegg Guttmann.

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Michael Clegg and Martin Guttmann have been collaborating since 1980. They have shown extensively in the U.S.A., Germany, France, Italy, Austria, Japan and other countries. Their work is in collect...

Clegg and Guttmann

By Tobia Bezzola, Martin Guttmann, Michael Clegg, Jurg Trosch, Markus Bosshard

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Clegg and Guttmann

By Martin Guttmann, Christian Mosar

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Nadim Vardag

By Belvedere Vienna, Nadim Vardag, Agnes Husslein Arco, Axel John Wieder, Hans J XFC Rgen Hafner

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2d23d

By Martin Guttmann, Christian Egger, Rebekka Reuter

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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.