Robert Krumm Books

Inside The Norton Utilities

By Rob Krumm, Robert Krumm

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Ventura

By Rob Krumm, Robert Krumm

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Wauseon

By Robert Krumm

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"Founded in 1852 amid dense forests and the mosquito-infested Great Black Swamp, Wauseon became the county seat of one of the last areas in Ohio to be settled. Named in honor of a local Potawatomi...

Ventura 2.0

By Rob Krumm, Robert Krumm

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Teach Yourself Wordperfect 5.1

By Rob Krumm, Robert Krumm

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xiii, 272 pages : 24 cm Includes index

Teach Yourself Works For Pc'S

By Rob Krumm, Robert Krumm

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Teach Yourself Harvard Graphics

By Rob Krumm, Robert Krumm

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Access Workshop/Book And Disk

By Rob Krumm, Robert Krumm

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Sets out to teach all aspects of database development, from database design and problem solving, to building Access Basic programs to solve specific business needs. Applications covered include bui...

Microsoft Office Developers Guide With Disk

By Robert, Krumm, Robert Krumm

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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.