Thomas M. Müller Books

Herr Schmidt ist Koch

By Thomas M. Muller

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Lebens-Mittel: Was Kinder brauchen

By Thomas M. Muller, Armin Abmeier, Rotraut S. Berner

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Leon Pirat und der Goldschatz

By Christine Nostlinger, Thomas M. Muller

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Mit einem Reh kommt Ilka ins Merkur

By Richard Schaeffler

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Leon Pirat

By Christine Nöstlinger, Thomas Müller, Thomas M. Müller

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Wird Leon wirklich Pirat? Zusammen mit Papa und den drei Piraten, dem Langen, dem Kurzen und dem Dicken segelt Leon auf dem Piratenschiff. Aber sie überfallen nicht Schiffe, wie das bei Piraten so...

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.