Bill Holmes Books

Submachine Gun

By Bill Holmes, Rex Applegate

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The Handgun Home Workshop Guns For Defense Resistance

By Bill Holmes

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Home Workshop Prototype Firearms

By Bill Holmes

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Master gun maker Bill Holmes shares what will and won't work in designing and building rifles and shotguns from raw materials. Includes the fine points of creating everything from actions to sights...

Home Workshop Guns for Defense and Resistance

By Bill Holmes

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The 9mm Machine Pistol Home Workshop Guns For Defense Resistance

By Bill Holmes

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Home Workshop Guns for Defense Resistance Vol. V

By Bill Holmes

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Entrapment

By Bill Holmes

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Potpourri Humor

By Bill Holmes, Jack Bunn

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Potpourri Humor

By Bill Holmes, Jack Bunn

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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.