Paul Cartledge Books

Agesilaos and the crisis of Sparta

By Paul Cartledge

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The Spartans

By Paul Cartledge

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The Spartans were a society of warrior-heroes who were the living exemplars of such core values as duty, discipline, self-sacrifice, and extreme toughness. This book, written by one of the world&#8...

Alexander the Great

By Paul Cartledge

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The definitive biography of the towering hero of the classical world: a fearless general, the conqueror of the Persians, and the visionary ruler of a vast empire—from one of the wor...

Thermopylae: The Battle that Changed the World

By Paul Cartledge

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Alexander the Great

By Paul Cartledge

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Alexander the Great

By Paul Cartledge

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The Spartans

By Paul Cartledge

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Alexander the Great

By Paul Cartledge

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Alexander the Great

By Paul Cartledge, John Lee

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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.