Troels Andersen Books

Jorn i Havana Jorn in Havana

By Troels Andersen

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Fra skitse til faerdigt arbejde

By Erik Nyholm

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Jan Holger Jerichau 1937 2019

By Troels Andersen, Jan Holger Jerichau

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Jan Holger Jerichau blev som ung uddannet malersvend og var i årene 1967-77 elev af billedhugger og grafiker Gunnar Hossy. Sin kunstneriske karriere begyndte han som maler og grafiker og gik, inspi...

Erindringer om Asger Jorn

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Jorn pa vaeggen

By Troels Andersen

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Per Kirkeby

By Per Kirkeby, Troels Andersen

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Ude af oje

By Troels Andersen

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Silkeborg Kunstmuseums historie 1940 2005

By Troels Andersen

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Ex skolen

By Troels Andersen

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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.