Rob Krumm Books

Learn Pc Microsoft Windows 3.1
Wordperfect 5.1 Applied: Writing Research Papers
Ms-Dos 6.0
Ms-Dos 6.0

By Rob Krumm, Rob, Krumm

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Inside The Norton Utilities 6.0
Inside The Norton Utilities For The Macintosh
Inside The Norton Utilities
Windows Applied
Windows Applied

By Rob Krumm

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xvi, 420 p. : 24 cm. + Title on cover: Microsoft Windows applied System requirements for computer disc: IBM-compatible PC; DOS; Microsoft Windows; CD-ROM player Includes index

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Microsoft R. EXCEL
Microsoft R. EXCEL

By Rob Krumm, Alan L. Eliason

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Microsoft(R) Excel St/Ed 3 Dks
Understanding And Using WORDPERFECT/Windows

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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.

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