Chris Wickham Books

The Inheritance of Rome

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"The breath of reading is astounding, the knowledge displayed is awe-inspiring and the attention quietly given to critical theory and the postmodern questioning of evidence is both careful and sin...

Framing the Early Middle Ages

By Chris Wickham

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Marxist History-writing for the Twenty-first Century

By Chris Wickham

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Community and Clientele in Twelfth-Century Tuscany: The Origins of the Rural Commune in the Plain of Lucca

By Chris Wickham

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The Mountains and the City: The Tuscan Appennines in the Early Middle Ages

By Chris Wickham

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Framing the Early Middle Ages: Europe and the Mediterranean, 400-800

By Chris Wickham

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Framing the Early Middle Ages: Europe and the Mediterranean, 400-800

By Chris Wickham

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Medieval Europe

By Chris Wickham

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"The millennium between the breakup of the western Roman Empire and the Reformation was a long and hugely transformative period--one not easily chronicled within the scope of a few hundred pages. Y...

Medieval Europe

By Chris Wickham

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Early medieval Italy

By Chris Wickham

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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.