Ronald J. Leach Books

Software Reuse: Methods, Models, and Costs

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Software reuse expert Ronald J. Leach has written the complete guide to this emerging strategy, drawn from years of research and hands-on practice. After providing an overview of the process, compl...

Using C in Software Design Book and Disk

By Ronald J. Leach

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Object-Oriented Design and Programming With C

By Ronald Leach, Ronald J. Leach

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Advanced Topics in UNIX: Processes, Files, and Systems

By Ronald J. Leach

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Advanced topics in UNIX

By Ronald J. Leach

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Baltimore Blue and Freddie Gray

By Ronald J. Leach

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Computers and Logic in Genealogy

By Ronald J. Leach

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Introduction to Software Engineering

By Ronald J. Leach

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Advanced Topics in UNIX

By Ronald J. Leach

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Introduction to Software Engineering

By Ronald J. Leach

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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.