Peter Ruggendorfer Books

Felix von Luschan 1854 1924

By Hubert D. Szemethy, Peter Ruggendorfer

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Das Theater von Ephesos. Archaologischer Befund Funde und Chronologie Tafelband

By Peter Ruggendorfer

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In this volume of the ?Forschungen in Ephesos? the recent archaeological examinations at the Theater of Ephesus are published. Beside the results of the excavations the volume incorporates the anal...

Das Mausoleum von Belevi

By Peter Ruggendorfer

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The current volume of the Forschungen in Ephesos presents the concluding results of the recent archaeological and art-hisorical investigations at the monumental tomb in the hinterland of Ephesos. T...

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.