Harold Davis Books

Red Hat Linux 9: Visual QuickPro Guide

By Joe Merlino, Kate Wrightson, Harold Davis

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CD-ROM includes Red Hat Linux 6.0 Publisher's Edition (Linux kernel version 2.22-15), GNOME, KDE 1.1, Netscape Communicator 4.5.1, the GLMP (GNU Image Manipulation Program) 1.04, plus games, custom...

The Photoshop Darkroom 2: Creative Digital Transformations

By Harold Davis

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Digital Photography Digital Field Guide Omega Satter Edition

By Harold Davis

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Creative black white

By Harold Davis

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Creative portraits

By Harold Davis

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Creative lighting

By Harold Davis

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Offers advice on using lighting to enhance a subject and the final picture, covering such topics as the exposure, natural lighting, ambient light, and enhancing lighting effects.

Hazardous Materials Reference Book

By Julie A. Davis, Daniel J. Davis

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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.