Tone Hansen Books

Modern art in Northern Europe 1918 1931

By Tone Hansen, Irena Jomantiene, Gladys C. Fabre, Gerd Elise Morland, Jan Torsten Ahlstrand

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Looters smugglers and collectors

By Tone Hansen, Alexander Alberro, Ana Maria Bresciani

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Looters, smugglers, and collectors: Provenance research and the market departs from and extends beyond the restitution case of Henri Matisse's "Blue Dress in a Yellow Armchair" (1937) to the heirs...

Entering a site of production Modernism Machine

By Tone Hansen, Dag Erik Elgin

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No Is Not an Answer

By Maria Lind, Tone Hansen, Kalliopi Minioudaki, Silvia Eiblmayr, Marie Louise Ekman

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Josef Albers

By Milena Hoegsberg, Tone Hansen, Joseph Albers

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Marina Abramovic

By Tone Hansen, Marina Abramovic, Lars Morch Finborud

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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.