John M. Thompson Books

Medieval World, The

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Sumptuously illustrating the vivid parade of a thousand years of history, this comprehensive historical atlas concentrates on the Mediterranean world but also shows what happened across the globe b...

Who's Who in American History

By John M. Thompson

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This beautiful family reference from National Geographic tells the story of America through its presidents, revolutionaries, visionaries, inventors, entertainers—and even its most notorious v...

National Geographic Traveler: Washington, DC, 6th Edition

By John M. Thompson

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Russia, Bolshevism, and the Versailles Peace

By John M. Thompson

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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.