John Scalzi Books

Zoe s Tale

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Zoë Boutin-Perry travels to the fledgling colony world of Roanoke with her adoptive parents, John Perry and Jane Sagan, who have accepted positions as administrators. When her biological father dev...

Redshirts

By John Scalzi

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Agent to the Stars

By John Scalzi

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Metatropolis

By Jay Lake, John Scalzi

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Your Hate Mail Will Be Graded

By John Scalzi

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The human division

By John Scalzi

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B Team leader Lieutenant Harry Wilson counters hostile alien forces, angry humans and unpredictable elements from the universe in order to protect the interests of the Colonial Union.

Redshirts A Novel with Three Codas

By John Scalzi

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Metatropolis Original Science Fiction Stories in a Shared Future

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Old Man s War

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The Android s Dream

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.