John M. MacDonald Books

Burglary and theft

By John M. MacDonald

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Criminal investigation

By John M. MacDonald

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Measuring crime criminality

By John M. MacDonald

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"Measuring Crime and Criminality focuses on how different approaches to measuring crime and criminality are used to test existing criminological theories. Each chapter reviews a key approach for me...

Understanding social science research

By Geoffrey P. Alpert

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Changing Places

By Charles Branas, John MacDonald, Robert Stokes

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Changing Places

By Charles Branas, John MacDonald, Robert Stokes

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Neighborhood effects on crime and youth violence

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Highland Ponies and Some Reminiscences of Highlandmen

By John M. MacDonald

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Highland Ponies and Some Reminiscences of Highlandmen

By John M. MacDonald

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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.