Polymnia Athanassiadi Books

Julian and Hellenism: An Intellectual Biography

By Polymnia Athanassiadi, Polymnia Athanassiadi Fowden

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Pagan Monotheism in Late Antiquity

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Pagan Monotheism in Late Antiquity

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Julian

By Polymnia Athanassiadi

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Mutations of Hellenism in Late Antiquity

By Polymnia Athanassiadi

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"The 21 studies in this volume, which deal with issues of social and intellectual history, religion and historical methodology, explore the ways whereby over the course of a few hundred years -roug...

Vers la pensee unique

By Polymnia Athanassiadi

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La lutte pour l'orthodoxie dans le platonisme tardif

By Polymnia Athanassiadi

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Damascus

By Polymnia Athanassiadi, Damaskios

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Julian

By Polymnia Athanassiadi

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Julian

By Polymnia Athanassiadi

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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.