Derek Brewer Books

Studies in Medieval English Romances

By Derek Brewer

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Studies in Medieval English Romances

By Derek Brewer

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During the middle ages a common fund of comic tales circulated throughout Europe. Writers such as Boccaccio, Chaucer, Rabelais and Cervantes drew on this material, and used it for their own purpose...

A companion to the Gawain-poet

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This collection of original essays by an international group of distinguished medievalists provides a comprehensive introduction to the Morte Darthur, the great work of Sir Thomas Malory, which wil...

Medieval comic tales

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The Middle Ages after the Middle Ages in the English-speaking world

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The World of Chaucer

By Derek Brewer

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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.