Bonnie Wheeler Books

Eleanor of Aquitaine Lord and Lady

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Listening To Heloise: The Voice of a Twelfth-Century Woman

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"Heloise, the twelfth-century French abbess and reformer, emerges from this book as one of history's most extraordinary women; a thinker-writer of profound insight and skill. Her supple and learned...

Eleanor of Aquitaine

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"These twenty chapters by scholars in various fields provide a fresh context for understanding Eleanor of Aquitaine's multi-faceted career and reputation. Some essays in this collection reassess th...

Listening to Heloise

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Becoming male in the Middle Ages

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Fresh verdicts on Joan of Arc

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Medieval mothering

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Fresh Verdicts on Joan of Arc The New Middle Ages

By Bonnie Wheeler

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Medieval Mothering The New Middle Ages

By John Parsons

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Becoming Male in the Middle Ages Garland Reference Library of the Humanities

By Jeffrey Cohen

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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.