Stephen M. 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...

A War of a Different Kind

By Stephen M. Duncan

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"The new homeland security, military, and legal strategies developed by the United States in the months following the terrorist attacks on the World Trade Center and the Pentagon are given comprehe...

First Duty

By Stephen M. Duncan

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Only the Most Able

By Stephen M. Duncan

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Master Craftsmen

By Stephen M. Duncan

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Only the most able

By Stephen M. Duncan

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The nature of the threats facing America today has drastically reduced the margin for error in senior political appointments. The author draws on a lifetime of military, public service, executive,...

Only the most able

By Stephen M. Duncan

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The nature of the threats facing America today has drastically reduced the margin for error in senior political appointments. The author draws on a lifetime of military, public service, executive,...

Transforming the Reserve Component

By Jr. Raymond E. Bell, Larry Wentz, Stephen M. Duncan, Hans Binnendijk, National Defense University, Christopher Holshek, Michael J. Baranick, Gina Cordero

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War of a Different Kind

By Stephen M. Duncan

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First Duty

By Stephen M. 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.