Katharina Winckler Books

Der Ostalpenraum im Fruhmittelalter

By Max Diesenberger, Stefan Eichert, Katharina Winckler

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Der Ostalpenraum war ab der Spätantike und im frühen Mittelalter eine Kontaktzone unterschiedlicher Herrschaftsgebiete. Als ehemaliger Teil des Römischen Reiches ist er im 7. und 8. Jahrhundert vor...

Die Alpen im Fruhmittelalter

By Katharina Winckler

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This book follows a new path of describing the Alps from the years 500 to 800. Instead of running through this mountain range from east to west (or reverse) and writing one local history after the...

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.