John Scalzi Books

Old Man'S War

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EDITORIAL REVIEW: John Perry did two things on his 75th birthday. First he visited his wife’s grave. Then he joined the army. The good news is that humanity finally made it into interstellar s...

The Android'S Dream

By John Scalzi

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From New York Times bestseller and Hugo Award-winner John Scalzi, a wild-and-woolly caper novel of interstellar diplomacy A human diplomat creates an interstellar incident when he kills an alien...

When Humanity Is Threatened By An Alliance Of Three Adversarial Races Who Would Halt The World's Expansion Into Space, Jared Dirac, A Super-power Clone, Tries To Discover Why The Scientist Who Gave...

Old Man'S War

By John Harris, John Scalzi

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EDITORIAL REVIEW: John Perry did two things on his 75th birthday. First he visited his wife’s grave. Then he joined the army. The good news is that humanity finally made it into interstellar s...

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.