Tatjana Michaelis Books

Die grosse Angst unter den Sternen

By Johanna Kang, Jo Hoestlandt, Tatjana Michaelis

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Eine alte Frau erinnert sich an das Jahr 1942, als in Paris ihre jüdische Freundin Lydia verschwunden ist.

Goldblatt und Silberwurzel. Alte und neue Baummarchen aus aller Welt.

By Monika. Beisner

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Der romantische Kindheitsmythos

By Tatjana Michaelis

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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.