Michael Ostheimer Books

Verfassungsschutz nach der Wiedervereinigung

By Michael Ostheimer

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Mythologische Genauigkeit

By Michael Ostheimer

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Ungebetene Hinterlassenschaften

By Michael Ostheimer

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"Ausgehend von dem in der deutschsprachigen Literature zu Beginn des 21. Jahrhunderts omnipräsenten Thema der Familie beschäftigt sich die Studie mit den familiendynamischen Nachwirkungen der NS-Ze...

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.