Rodney P. Carlisle Books

This book tells the story of the evolution of the Dahlgren Laboratory from a naval proof and test facility into a modern research and development center crucial to the technological evolution of th...

Turning Points Actual and Alternate Histories: Native America from Prehistory to First Contact

By J. Geoffrey Golson, Deitra Leonard Lowdermilk, Rodney P. Carlisle

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Scientific American Inventions and Discoveries

By Scientific American, Rodney P. Carlisle

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Encyclopedia of Intelligence and Counterintelligence

By Rodney P. Carlisle

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Traces the history of spies, intellligence, and counterintelligence throughout history, both internationally and in the United States.

Supplying the nuclear arsenal

By Rodney P. Carlisle

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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.