John Prados Books

Central Intelligence Agency

By Immerman Richard H., John Prados, Athan G. Theoharis, Kathryn Olmstead

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The Battle of Normandy was the greatest offensive campaign the world had ever seen. It was also the crucible of combat tactics and logistic techniques that would decide the outcome of World War II....

Islands of destiny

By John Prados

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Blood Road

By John Prados

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Combined Fleet Decoded

By John Prados

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Vietnam

By John Prados

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Storm Over Leyte

By John Prados

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The story of the Battle of Leyte Gulf in World War II—the greatest naval battle in history.     As Allied ships prepared for the invasion of the Philippine island of Leyte, every av...

Inside the Pentagon Papers

By John Prados, Margaret Pratt Porter

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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.