Guy MacLean Rogers Books

The sacred identity of Ephesos

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Black Athena revisited

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In this collection of twenty essays, leading scholars in a broad range of disciplines confront the claims made by Martin Bernal in Black Athena: The Afroasiatic Roots of Classical Civilization. In...

Black Athena revisited

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In this collection of twenty essays, leading scholars in a broad range of disciplines confront the claims made by Martin Bernal in Black Athena: The Afroasiatic Roots of Classical Civilization. In...

Alexander

By Guy MacLean Rogers

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For nearly two and a half millennia, Alexander the Great has loomed over history as a legend–and an enigma. Wounded repeatedly but always triumphant in battle, he conquered most of the known...

Alexander

By Guy MacLean Rogers

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Roots of the Western Tradition: A Short History of the Western World

By C. Warren Charles Warren Hollister

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For the Freedom of Zion

By Guy MacLean Rogers

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The mysteries of Artemis of Ephesos

By Guy MacLean Rogers

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Artemis of Ephesos was one of the most widely worshiped deities of the Graeco-Roman World. Her temple, the Artemision, was one of the seven wonders of the ancient world, and for more than half a mi...

Mysteries of Artemis of Ephesos

By Guy MacLean Rogers

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Sacred Identity of Ephesos

By Guy Maclean Rogers

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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.