Jack Howard Books

Computer science for Christian schools

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Practical HDRI, 2nd Edition, by pro photographer Jack Howard, leads you into the the new frontier of High Dynamic Range Imaging, a multi-shot technique to digitally capture, store, and edit the ful...

HDR an Introduction to High Dynamic Range Photography

By Jack Howard

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Hard Boards Bite into My Body

By Jack Howard

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Introduction to computers for Christian schools

By Jack Howard

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Practical Hdri

By Jack Howard

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Worldly Traveler

By Instafo, Jack Howard

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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.