Christos Kremmydas Books

Commentary on Demosthenes Against Leptines: With Introduction, Text, and Translation

By Christos Kremmydas

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Hellenistic Oratory

By Christos Kremmydas, Kathryn Tempest

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Hellenistic Oratory: Continuity and Change

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"Hellenistic oratory remains an elusive subject as not one Greek speech has survived from the end of the fourth century BC until the beginning of the first century AD. This collection of fourteen i...

Hellenistic Oratory

By Christos Kremmydas, Kathryn Tempest

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Profession and Performance

By Lene Rubinstein, Christos Kremmydas, J. G. F. Powell, Institute Of Classical Studies Staff University Of London

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Friendship in Ancient Greek Thought and Literature

By Christos Kremmydas, Jakub Filonik, Eleni Volonaki, Athanasios Efstathiou

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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.