John Godfrey Books

Over the course of a seven-decade career, American artist Alex Katz (b. 1927) has conveyed his singular vision of the world through paintings that fuse realism and abstraction, allowing details to...

The Church in Anglo Saxon England

By John Godfrey

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Aerofilms Guide

By Godfrey John., John Godfrey

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Sussex New Shell Guides

By Lord Egremont, John Godfrey

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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.