Brian Proffit Books

Os/2 Inside And Out

By Brian Proffit, Kathy Ivens, Kathy Ivens And Brian Proffit

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A guide to mastering OS/2 2.0, providing all the information you need to take full advantage of the productivity and power of OS/2. Following an overview of the basics, it shows how to use OS/2 for...

Os/2 Warp Survival Kit

By Brian Proffit, Brian Proffitt

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If you just got OS/2® Warp and you're worried about learning how to use it—relax! The OS/2 Warp Survival Kit has everything you'll need to feel right at home with your new operating system. In sev...

Install, Configure, And Customize Red Hat Linux 7

By ***, Brian Proffit, Brian Proffitt

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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.