John Scalzi Books

The Ghost Brigades

By John Scalzi, Vincent Chong

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Your hate mail will be graded

By John Scalzi

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A compilation of some of the writings from the author's popular blog, Whatever, from 1998 to 2008.

" ... METAtropolis is the brainchild of five of science fiction's hottest writers ... who combined their talents to build a new urban future and then wrote their own stories in this collectively-co...

The Last Colony

By John Scalzi

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The God Engines

By John Scalzi

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Judge Sn Goes Golfing

By John Scalzi, Gahan Wilson

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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.