William W. Johnstone Books

Texas Kill of the Mountain Man

By William W. Johnstone, J. A. Johnstone

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The Jensen Brand

By William W. Johnstone J.A. Johnstone

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THE GREATEST WESTERN WRITERS OF THE 21ST CENTURY   Bestselling authors William W. Johnstone and J.A. Johnstone have thrilled readers with the epic struggles and hard-fought triumphs of the pio...

Violence of the Mountain Man

By William W. Johnstone, J.A. Johnstone

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Monahan s Massacre

By William W. Johnstone, J. A. Johnstone

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The accidental gunslinger Dooley Monahan has quit wandering and settled down to a farmer's life. But when the itch for adventure gets too strong, he packs up the rides west. Along with the horse, G...

A Lone Star Christmas Christmas 1

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A Rocky Mountain Christmas

By William W. Johnstone J.A. Johnstone

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THE GREATEST WESTERN WRITERS OF THE 21ST CENTURY   The families Jensen and MacCallister reunite in a gripping tale of tragedy, survival, love, betrayal, and maybe even a miracle . . .   T...

Epic Saga of the American Frontier

By William W. Johnstone, J. A. Johnstone

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Behind the Iron

By William W. Johnstone J.A. Johnstone

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Johnstone Country.  The Good Die Young. The Bad Die Younger.   In this gripping thriller, America’s greatest Western storytellers take you inside the dangerous world of an unde...

A High Sierra Christmas

By William W. Johnstone J.A. Johnstone

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JOHNSTONE JUSTICE. MADE IN AMERICA.   A Jensen family holiday takes a dark and dangerous turn—on the infamous Donner Pass—in this thrilling epic adventure from the bestselling John...

Evil Never Sleeps

By William W. Johnstone J.A. Johnstone

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Johnstone Country.  Frontier Spirit Lives Here.   The bestselling masters of the American West add a deadly new twist to the epic saga of U.S. Marshal Will Tanner. This time, the hun...

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.