Trevor N. Dupuy Books

The military life of Gustavus Adolphus

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A biography emphasizing the military career of the seventeenth-century Swedish king whose new system of warfare was used well into the twentieth century.

Hannibal.

By Trevor N. Dupuy

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The military life of Winston Churchill

By Trevor Nevitt Dupuy, Trevor N. Dupuy

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A biography of the British soldier, historian, and politician with emphasis on his military experiences and accomplishments.

The military lives of Hindenburg and Ludendorff of Imperial Germany.

By Trevor Nevitt Dupuy, Trevor N. Dupuy

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Interwoven biographies of the two German soldiers whose collaboration during World War I nearly enabled Germany to win the war against great odds.

The Evolution of Weapons and Warfare

By Trevor Nevitt Dupuy, Trevor N. Dupuy

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Numbers, prediction, and war: Using history to evaluate combat factors and predict the outcome of battles

By Trevor Nevitt Dupuy, T.N. Dupuy

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This remarkable book for war-gamers, political and military analysts, and anyone else interested in military history - or in future history - is the result of a series of studies undertaken for the...

Great battles on the eastern front

By Trevor Nevitt Dupuy

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The evolution of weapons and warfare

By Trevor N. Dupuy

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The Harper Encyclopedia of Military Biography

By Trevor N. Dupuy, David L. Bongard, Curt Johnson

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Guide to Research Sources in Military History

By Trevor N. Dupuy

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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.