William W. Johnstone Books

Death rides alone

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While escorting a violent man charged with murdering a preacher's daughter to jail, Luke Jensen discovers that the man is innocent of this crime as they both battle for their lives in a storm of bu...

A Texas hill country Christmas

By William W. Johnstone

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While most folks are busy preparing for Christmas, the tightknit Jensen clan can only hope they'll make it home. Luke Jensen is in San Antonio tracking down a dangerous outlaw. But when he finds th...

Colorado Christmas

By William W. Johnstone, J. A. Johnstone

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Hell s half acre

By William W. Johnstone

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Sheriff Jess Casey confronts a gang-run empire of booze, prostitution, and gunfights when he takes charge of Fort Worth Texas.

Hell s Half Acre Cold blooded

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Family Jensen Brotherhood of Evil

By William W. Johnstone, J. A. Johnstone

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The Doomsday Bunker

By William W. Johnstone J.A. Johnstone

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From the bestselling authors of Black Friday, Tyranny, and Stand Your Ground comes a shattering novel of the last days of civilization—and the final battle for humanity . . .   DON&rsquo...

Smoke Jensen

By William W. Johnstone

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"On the eve of the Civil War, Kirby Jensen is the youngest of three children living on a hardscrabble ranch in Southwestern Missouri. But in 1861, shots were fired in Charleston harbor, and Kirby's...

Winchester 1886

By William Johnstone, J. A. Johnstone

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Winchester 1887

By William W. Johnstone, J. A. Johnstone

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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.