Henry H. Willis Books

Protecting Emergency Responders

By Henry H. Willis

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Terrorism Risk Modeling for Intelligence Analysis and Infrastructure Protection

By Henry H. Willis

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The Hurricane Sandy Rebuilding Task Force s Infrastructure Resilience Guidelines

By Henry H. Willis, Debra Knopman, Melissa L. Finucane, Noreen Clancy

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Maritime Terrorism

By Michael D. Greenberg

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Increasing the capacity of freight transportation

By David S. Ortiz

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Disruptions are increasing in North American supply chains. North American freight transport capacity is threatening economic competitiveness. Rising shipping costs, increasingly lengthy shipping t...

Unexploded Ordnances

By Jacqueline MacDonald

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Characterizing National Exposures to Infrastructure from Natural Disasters

By Anu Narayanan, Henry H. Willis, Tom LaTourrette, Drake Warren, Chuck Stelzner, Jordan R. Fischbach, Edmundo Molina Perez, Paul Sorensen, Kathleen Loa, Lauren Kendrick

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Enhancing U. S. Coast Guard Metrics

By Scott Savitz, Henry H. Willis, Aaron C. Davenport, William Sasser, Martina Melliand

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Current and Future Exposure of Infrastructure in the United States to Natural Hazards

By Anu Narayanan, Henry H. Willis, Chuck Stelzner, Jordan R. Fischbach, Edmundo Molina Perez, Kathleen Loa, Lauren Kendrick

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Capabilities Analysis Model for Missile Defense

By Henry H. Willis

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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.