Ronald M. Holmes Books

Murder in America

By Ronald M. Holmes

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Murder in America

By Ronald M. Holmes

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Profiling violent crimes

By Ronald M. Holmes

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Profiling Violent Crimes, Second Edition contains captivating new additions to the best-selling first edition, including a state-of-the-art overview of the general principles of profiling. Presenti...

Profiling violent crimes

By Ronald M. Holmes

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Sexual behavior

By Ronald M. Holmes

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Sex Crimes

By Ronald M. Holmes, Stephen T. Holmes

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Suicide

By Ronald M. Holmes, Stephen T. Holmes

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Fatal Violence

By Ronald M. Holmes, Stephen T. Holmes

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Introduction to Gangs in America

By Richard Tewksbury, George V. Higgins, Ronald M. Holmes

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Suicide

By Ronald M. Holmes, Stephen T. Holmes

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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.