Paul Dreyer Books

RAND s portfolio analysis tool PAT

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This report is a reference manual and user's guide for RAND's Portfolio Analysis Tool (PAT), a spreadsheet-based software application for facilitating decisions dealing with uncertainty and differe...

A Portfolio AnalysisTool for Missile Defense

By Paul Dreyer

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Enhancing Space Resilience Through Non Materiel Means

By Geoffrey Torrington, George Nacouzi, Gary McLeod, David Manheim, Mel Eisman, Myron Hura, Paul Dreyer, Krista S. Langeland

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Reflecting warfighter needs in Air Force programs

By Davis Paul K.

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Is the USAF Flying Force Large Enough

By John Speed Meyers, Alan J. Vick, Paul Dreyer

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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.