John Ringo Books

Live Free or Die Troy Rising Series
Live Free or Die
Live Free or Die

By John Ringo, Mark Boyett

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Gust Front
Gust Front

By John Ringo

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Gust Front
Gust Front

By John Ringo

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Gust Front
Gust Front

By John Ringo

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March Upcountry
March Upcountry

By David Weber, John Ringo

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The Last Centurion
The Last Centurion

By John Ringo

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The Tuloriad
The Tuloriad

By John Ringo

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Claws That Catch Looking Glass Book 4
Live free or die
Live free or die

By John Ringo

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Hero Troy Vernon wages war against the Horvath, Earth's alien conquerors, determined to free his enslaved world and to take the first steps into space using off-world technologies. If he succeeds,...

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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.

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