Aaron Johnston Books

Earth afire

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One hundred years before Ender's Game, the aliens arrived on Earth with fire and death. This is the story of the First Formic War. Victor Delgado beat the alien ship to Earth, but just barely. Not...

The Swarm

By Orson Scott Card, Aaron Johnston

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Earth Unaware

By Orson Scott Card

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Orson Scott Card s Ender In Exile

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First Formic War Earth Unaware Earth Afire Earth Awakens

By Orson Scott Card, Aaron Johnston

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Earth Afire

By Orson Scott Card, Aaron Johnston

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Earth Awakens

By Orson Scott Card, Aaron Johnston

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Earth Unaware

By Orson Scott Card, Aaron Johnston

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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.