Stephen Duncan Books

Citizen Warriors

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Citizen Warriors, by former Assistant Secretary of Defense for Reserve Affairs Stephen M. Duncan, is a personalized account of the distinguished modern history of America's reserve and National Gua...

Fifers Collection of Tunes for the 69th Nysv the Irish Brigade

By Stephen Duncan

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First Duty

By Stephen Duncan

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Master Craftsmen

By Stephen Duncan

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Ghost Walking

By Stephen Duncan

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Breaking Glass

By Beata Duncan, S. A. Harrison, Stephen Duncan

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Inhale

By Justin Corkum, Ginger Tabot, Stephen Duncan

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Papigriffon Training Guide Papigriffon Training Book Features

By Stephen Duncan

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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.