Christoph Schafer Books

Lusoria

By Christoph Schafer

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Menschen und Orte der Antike

By Christoph Schafer, Helmut Halfmann, Sabine Panzram, Werner Riess

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Connecting the ancient world

By Christoph Schafer

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The volume goes back to an international lecture series at Trier University in summer 2016 and contains a foreword and eight papers. They deal with types of sails (e.g. square rig, artemon, sprit-s...

Das Simultaneum

By Christoph Schafer

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Staat, Kirche, Individuum

By Christoph Schafer

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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.