Donald Roy Howard Books

Critical studies of Sir Gawain and the green knight

By Donald Roy Howard

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Chaucer and the medieval world

By Donald Roy Howard

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Chaucer

By Donald R. Howard

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An award-winning biography that recreates the public, private, and poetic life of Geoffrey Chaucer, the father of English poetry and a central man of his age Chaucer was born in the latter half o...

The Idea of the i Canterbury Tales i

By Donald Roy Howard, Donald R. Howard

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Chaucer

By Donald R. Howard

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The Idea of Medieval Literature

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Three Temptations

By Donald Roy Howard

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Three Temptations

By Donald Roy Howard

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Three Temptations

By Donald Roy Howard

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Three Temptations

By Donald Roy Howard

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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.