Christopher G. Pernin Books

Controlling the cost of C4I upgrades on naval ships

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Building Armies Building Nations

By Bryan Frederick, Christopher G. Pernin, Michael Shurkin, John Gordon IV

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The war within

By Rajeev Ramchand

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Targeted Interoperability

By Matthew E. Boyer, Jan Osburg, Jakub P. Hlavka, Christopher G. Pernin, Michael Shurkin, Daniel C. Gibson, Michael Lerario, John Gordon IV

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Efficiencies from applying a rotational equipping strategy

By Christopher G. Pernin

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To meet the demands of the past decade of conflict in Iraq and Afghanistan, the Army has adopted a rotational strategy based on the Army Force Generation (ARFORGEN) model. While the Army has adapte...

The Weapons Mix Problems

By Christopher G. Pernin

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Assessing conventional Army demands and requirements for ultra light tactical mobility

By Matthew E. Boyer

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Generating Electric Power in the Pacific Northwest

By Christopher G. Pernin

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Enabling the Global Response Force

By Anthony D. Rosello, Katherine Pfrommer, Dan Madden, Christopher G. Pernin, Michael Shurkin, Jonathan P. Wong, Jeremy M. Eckhause, Katharina Ley Best, Michael Schwille, John Gordon IV

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Global Landpower Network

By Szayna Thomas S., Laurinda L. Rohn, Derek Eaton, Christopher G. Pernin, Angela O Mahony

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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.