Robert S. Leonard Books

Do joint fighter programs save money

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In the past 50 years, the U.S. Department of Defense has pursued numerous joint aircraft programs, the largest and most recent of which is the F-35 Joint Strike Fighter (JSF). Joint aircraft progra...

The Future of the U.S. Intercontinental Ballistic Missile Force

By Lauren Caston

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Innovative Development

By Jeffrey A. Drezner

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Historical Cost Growth of Completed Weapon System Programs

By Mark V. Arena

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Extreme Cost Growth

By Mark A. Lorell

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This report identifies and characterizes conditions present in six U.S. Air Force Major Defense Acquisition Programs (MDAPs) experiencing extreme cost growth, using case study analysis. This report...

Is Weapon System Cost Growth Increasing

By Obaid Younossi

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Innovative Management in the DARPA High Altitude Endurance Unmanned Aerial Vehicle Program

By Jeffrey A. Drezner

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Quantifying Cost and Schedule Uncertainty for Major Defense Acquisition Programs MDAPs

By Julia Pollak, Robert S. Leonard, Meagan L. Smith, Thomas Light, Akilah Wallace

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Benchmarking Schedules for Major Defense Acquisition Programs

By Robert S. Leonard, Meagan L. Smith, Mark V. Arena, Thomas Light, Akilah Wallace

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The Arsenal Ship Acquisition Process Experience

By Robert S. Leonard

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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.