500 Ce Books

An Introduction to the Romans
Historical Map Guide
Historical Map Guide

By Ordnance Survey

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Roman and Mediaeval Canterbury Historical Map Guide S.
Ancient Britain Historical Map Guide
Famous Firsts in the Ancient Greek and Roman World
Macedonian Empire
Macedonian Empire

By James R. Ashley

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Shapers of Early Christianity
Shapers of Early Christianity

By Roland H. Jr. Worth, Roland H. Worth

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"Discusses the beliefs and behaviors of 50+ figures (100-400 A.D.) who played a role in the transformation from primitive Christianity to early Medieval Catholicism. Provides an overview of each pe...

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The Egyptian Pyramids
The Egyptian Pyramids

By J. P. Lepre

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The Mummy in Fact Fiction and Film
A Scandalous History of the Roman Emperors

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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.

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