John Scalzi Books

The Ghost Brigades

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The Ghost Brigades are the Special Forces of the Colonial Defense Forces, elite troops created from the DNA of the dead and turned into the perfect soldiers for the CDF's toughest operations. They’...

The Last Colony

By John Scalzi

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Zoe s Tale

By John Scalzi

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Fuzzy Nation

By John Scalzi

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The Human Division

By John Scalzi

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Lock In A Novel of the Near Future

By John Scalzi

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The End of All Things

By John Scalzi

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Old Man s War Boxed Set I Old Man s War The Ghost Brigades The Last Colony

By John Scalzi

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The collapsing empire

By John Scalzi

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Faster than light travel is impossible--until the discovery of The Flow, an extradimensional field available at certain points in space-time, which can take us to other planets around other stars....

The Collapsing Empire The Interdependency Book 1

By John Scalzi

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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.