Edward Jay Watts Books

Hypatia

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A philosopher, mathematician, and martyr, Hypatia is one of antiquity's best-known female intellectuals. For the sixteen centuries following her murder by a mob of Christians Hypatia has been remem...

Mortal republic

By Edward Jay Watts

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"In 22 BC, amid a series of natural disasters and political and economic crises, a mob locked Rome's senators into the Senate House and threatened to burn them alive if they did not make Augustus d...

City and School in Late Antique Athens and Alexandria

By Edward J. Watts, Edward Watts

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Mortal Republic

By Edward J. Watts

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The final pagan generation

By Edward Jay Watts

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"The Final Pagan Generation recounts the fascinating story of the lives and fortunes of the last Romans born before the Emperor Constantine converted to Christianity. Edward J. Watts traces their e...

Riot in Alexandria

By Edward Jay Watts

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Final Pagan Generation

By Edward J. Watts

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Riot in Alexandria

By Edward J. Watts

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City And School In Late Antique Athens And Alexandria

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Final Pagan Generation

By Edward J. Watts

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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.