David A. Howard Books

Conquistador in Chains

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The current image of the Spanish conquest of America and of the conquistadores who carried it out is one of destruction and oppression. One conquistador does not fit that image. A life-changing adv...

The Royal Indian Hospital of Mexico City

By Howard David A.

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Survival Chemist

By David A. Howard

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Missions Alive

By David Howard

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Teaching the Video Production Class

By David A. Howard

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Conquistador in Chains

By Howard David A.

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The Survival Chemist C 562

By Eliezer Flores, David A. Howard

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Teaching the Video Production Class

By David Howard, Amy Hunter

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Teaching the Video Production Class Beyond the Morning Newscast

By David Howard, Amy Hunter

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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.