Norman Denny Books

The Bayeux Tapestry: Story of the Norman Conquest, 1066

By Norman Denny, Josephine Filmer Sankey

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Explains the scenes depicted on the embroidered linen strip known as the Bayeux Tapestry which chronicle the events leading up to the battle between Harold of England and William of Normandy and th...

The Bayeux Tapestry: The Norman Conquest

By Norman Denny

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Sweet confusion

By Norman Denny

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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.