John David North Books

Science and Culture under William and Mary

By P.W. Klein, John David North

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The Measure of the Universe

By John David North

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Stonehenge: A New Interpretation of Prehistoric Man and the Cosmos

By John North, John David North

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John North brings a completely fresh interpretation to the most enigmatic aspects of this wonder of the prehistoric world. His discussion is tempered by meticulous analysis of ancient earthworks in...

Horoscopes and History Warburg Institute Surveys and Texts

By J.D. North, John David North

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Time and the scholastic universe

By John David North

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Stars Minds and Fate

By John North

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The Universal Frame

By John North, John David North

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Stonehenge

By John North

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Strategic Flexibility

By Kathryn Rudie Harrigan

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The Ambassadors Secret

By John David North

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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.