John Dempsey Books

Trends and Issues in Instructional Design and Technology

By Robert A. Reiser, John V. Dempsey

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Introduction to Investigations

By John S. Dempsey

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INTRODUCTION TO INVESTIGATIONS, Second Edition is a basic introductory text for college students who are interested in learning who investigators are, what they do, and how they do it. Dempsey has...

Zombie Prom

By Dana P. Rowe, John Dempsey

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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.