Richard W. Kaeuper Books

Chivalry and Violence in Medieval Europe

By Richard W. Kaeuper

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War, Justice, and Public Order: England and France in the Later Middle Ages

By Richard W. Kaeuper

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Chivalry and Violence in Medieval Europe

By Richard W. Kaeuper

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This original and authoritative text reveals how chivalry was part of the problem of violence in medieval Europe, not merely its solution. The ideal was to internalize restraint in knights, but a c...

Medieval Chivalry

By Richard W. Kaeuper

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Bankers to the Crown

By Richard W. Kaeuper

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Holy Warriors

By Richard W. Kaeuper

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The book of chivalry of Geoffroi de Charny

By Richard W. Kaeuper

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The book of chivalry of Geoffroi de Charny

By Richard W. Kaeuper

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Violence in Medieval Society

By Richard W. Kaeuper

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Chivalry and Violence in Medieval Europe

By Richard Kaeuper

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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.