Larry L. Constantine Books

A valuable new approach to computer systems and program design, structured design is quickly becoming the standard industrial technique for significantly improving productivity, enhancing reliabili...

Beyond Chaos: The Expert Edge in Managing Software Development

By Larry L. Constantine

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Software for Use: A Practical Guide to the Models and Methods of Usage-Centered Design

By Larry L. Constantine

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Recognizing usability as the key to successful software, Constantine and Lockwood provide concrete tools and techniques that programmers can employ to meet that end. Much more than just another set...

Treasures of the Island

By Larry L. Constantine, Joan M. Constantine

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Infinite Loop Stories About the Future by the People Creating It

By Larry L. Constantine

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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.