J. Michael Francis Books

Invading Colombia: Spanish Accounts of the Gonzalo Jimenez de Quesada Expedition of Conquest

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In early April 1536, Gonzalo Jim&énez de Quesada led a military expedition from the coastal city of Santa Marta deep into the interior of what is today modern Colombia. With roughly eight hundred S...

Iberia and the Americas

By J. Michael Francis

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Iberia and the Americas

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Iberia and the Americas Culture Politics and History

By J. Michael Francis

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Murder and Martyrdom in Spanish Florida

By J. Michael Francis, Kathleen M. Kole

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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.