John Shirley Books

Axle Bust Creek

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From the acclaimed author of Ralph Compton’s Prairie Fire, Kansas, the first in an action-packed new series starring Civil War veteran Cleveland Trewe, a master gunfighter, horseman, and lawm...

Resident Evil: Retribution - The Official Movie Novelization

By John Shirley

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Resident Evil: Retribution in will be released in 3D on September 14, 2012. It is the fifth installment in the massively successful Resident Evil film series, based on the hugely popular Capcom sur...

Bioshock

By John Shirley

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A prequel to the video-game franchise explains how the technologically advanced undersea city called Rapture came to be and how it eventually devolved into a chaotic dystopia.

Gunmetal Mountain

By John Shirley

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WINNER OF THE 2024 SPUR AWARDThe second in the action-packed new series from Ralph Compton writer, John Shirley, takes traditional Westerns on a wild ride with the epic adventures of master gunfigh...

Borderlands

By John Shirley

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Broken circle

By John Shirley

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"Witness an untold chapter in Halo lore as John Shirley's Halo: Broken Circle takes us to the dawn of the Covenant and the fateful first bargain between the Prophets and the Elites. Broken Circle w...

The other end

By John Shirley

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"What if you could design your own Judgment Day? Not a Judgment Day based on childish interpretations of religion, on bias and cultural narrowness...What if you could design a Judgment Day, for the...

Grimm: The Icy Touch

By John Shirley

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AN ALL NEW STORY BASED ON THE HIT NBC SERIES!Back in the 19th century a Wesen and a Grimm fight to the death. The Grimm wins, but the Wesen’s son escapes and vows revenge. In the present day,...

Wetbones

By John Shirley

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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.