Christoph Eger Books

Spatantikes Kleidungszubehor aus Nordafrika

By Christoph Eger

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Die jungere vorromische Eisen- und romische Kaiserzeit im Luhetal

By Christoph Eger

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Goldenes Zeitalter

By Marcus Carl Trier, Gabriele Oepen Domschky, Friederike Naumann Steckner, Christoph Eger

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Weltberühmte Kostbarkeiten wie die Goldkrone von Kertsch oder das Diadem von Tiligul gehören zu den Höhepunkten des Römisch-Germanischen Museums in Köln. Die kostbaren Funde aus der seit 1935 dort...

Warenwege - warenflusse

By Christoph Eger

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Warenwege warenflusse

By Christoph Eger

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Death and Burial in the near East from Roman to Islamic Times

By Michael Mackensen, Christoph Eger

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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.