Martin Doerry Books

Mein verwundetes Herz

By Martin Doerry

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My Wounded Heart

By MARTIN DOERRY

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My Wounded Heart

By Martin Doerry

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My wounded heart

By Martin Doerry

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"From her idealistic youth until the end of her life, Lilli Jahn was a prolific letter writer. A resourceful and strong-minded young woman, she studied medicine in Cologne and in her letters discus...

A tout de suite les enfants

By Martin Doerry

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Das SPIEGEL Haus in der Hafencity Hamburg

By Martin Doerry, Susanne Beyer

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Nirgendwo und uberall zu Haus

By Martin Doerry

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Mein Verwundertes Herz

By Martin Doerry

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Die Bildungsoffensive

By Karen Andresen, Martin Doerry

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Wie gut kennen Sie Deutschland

By Verbeet Markus Doerry Martin

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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.