Gregor Langfeld Books

Deutsche Kunst in New York

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Warum sammelten MoMA und Guggenheim, Kunstsammler und Kuratoren wie Katherine Dreier, Hilla Rebay, William Valentiner und Alfred Barr in der ersten Hälfte des 20. Jahrhunderts deutsche Kunst? Und w...

Duitse kunst in Nederland

By Gregor Langfeld

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Utopia 19001940 Visions Of A New World

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At the beginning of the twentieth century, two avantgarde movements emerged that sought to change the world: expressionism and constructivism. This book paints a portrait of the two schools and the...

Het Stedelijk in de oorlog

By Amsterdam Netherlands . Stedelijk Museum

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191 pages : 23 cm

German Art in New York

By Steven Lindberg, Gregor Langfeld

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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.