Henrik Marstal Books

Benny Andersen

By Henrik Marstal

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Borger i smilets land

By Henrik Marstal, Benny Andersen

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Else Marie Pade 1924 2016

By Henrik Marstal

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Else Marie Pades karriere som komponist er usædvanlig: Hun var elektronisk pioner i 1950?erne, blev siden næsten totalt glemt, men fik i 2001 en uventet genopdagelse, der gjorde hende anerkendt i i...

Mercyful Fate s Don t Break the Oath

By Fabian Holt, Henrik Marstal

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Mercyful Fate s Don t Break the Oath

By Fabian Holt, Henrik Marstal

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Populaermusikkultur i Danmark siden 2000

By Henrik Marstal, Mads Krogh

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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.