Henning Koch Books

The maggot people

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After inheriting a house in the south of France, Michael meets and falls in love with a fugitive stranger named Ariel. He soon discovers that through contact with her, he is turning into "a maggot...

Forschendes Lernen als Studiengangsprofil

By Peter Tremp, Henning Koch, Thomas Hoffmeister

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Politik og jura

By Henning Koch, Ole Espersen

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Will You Care If I Die

By Nicolas Lunabba, Henning Koch

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Will You Care If I Die

By Nicolas Lunabba, Henning Koch

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Old Man and the Cat

By Ane Gustavsson, Henning Koch, Nils Uddenberg

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Man Called Ove

By Fredrik Backman, Henning Koch

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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.