Christopher Dyer Books

"In this survey, Christopher Dyer reviews our thinking about the economy of Britain in the middle ages. By analysing economic development and change, he allows us to reconstruct, often vividly, the...

Lords and Peasants in a Changing Society: The Estates of the Bishopric of Worcester, 680-1540

By Christopher Dyer

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Social Relations and Ideas

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Tree of the year, 1988

By C. J. Esterhuyse

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Hanbury

By Christopher Dyer

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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.