Stefan Koldehoff Books

Frieder Burda

By Stefan Koldehoff

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Thannhauser Gallery

By Megan M. Fontanella, Gunter Herzog, Stefan Koldehoff, Chris Stolwijk

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Art & Crime

By Stefan Koldehoff, Tobias Timm

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Here are stories of high-stakes, brazen art crimes from around the world with new insights on ongoing cases by two journalists counted among the most 100 influential people in the art business."Tru...

Art & Crime

By Stefan Koldehoff, Tobias Timm

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A thrilling, eye-popping look at true crime in the billion-dollar art world.The art world is one of the most secretive of global businesses, and the list of its crimes runs long and deep. Today, wi...

Art & Crime

By Stefan Koldehoff, Tobias Timm

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Art and Crime

By Stefan Koldehoff, Tobias Timm

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Kunst Transfers

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Vincent van Gogh.

By Stefan Koldehoff

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Die Bilder sind unter uns

By Stefan Koldehoff

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Timm Rautert Anfang Beginnings

By Oskar Negt, Birgit Kulmer, Stefan Koldehoff, Timm Rautert

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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.