William Chester Jordan Books

Europe in the High Middle Ages

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"The Penguin History of Europe series... is one of contemporary publishing's great projects."--New Statesman It was an age of hope and possibility, of accomplishment and expansion. Europe's High M...

The Middle Ages

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A guide to the Middle Ages, discussing events, people, and practices around the world from 500 to 1500.

The Middle Ages

By William Chester Jordan

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Europe in the High Middle Ages: Penguin History of Europe

By William Chester Jordan, Jordan William C.

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Europe in the high Middle Ages

By William Chester Jordan

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The Middle Ages

By Jordan William C.

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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.