Jeff Williams Books

Lonely Planet Western Australia

By Jeff Williams

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Walking in the Ardennes

By Jeff Williams

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Walking in the Drakensberg

By Jeff Williams

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Silvretta Alps

By Jeff Williams

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The Remarkable Truth about Chiropractic

By Jeff Williams

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This compilation of writings by Dr. Jeff Williams, Fellow of the International Academy of Neuromusculoskeletal Medicine, is essentially a collection of short research reviews gathered in one resour...

Visualizing Liberal Arts Physics

By Jeff Williams

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Philips Ordnance Survey Street Atlas: Derby

By Jeff Williams

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Five Star Boys

By Jeff Williams

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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.