Jerry Ahern Books

Gun Digest buyer s guide to concealed carry handguns

By Jerry Ahern

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222 p. : 28 cm

Armed for personal defense

By Jerry Ahern

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A guide to the basics of concealed carry, from what kind of gun to choose to what kind of holster. Includes information on the best self-defense calibers and compares revolvers and semi-auto pistols.

Assault on the Empress Surgical Strike No 2

By Jerry Ahern

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The Illegal Man

By Jerry Ahern, Sharon Ahern

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The Takers

By David Griffin, Jerry Ahern, Sharon Ahern

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Summon the Demon The Takers Series

By David Griffin, Jerry Ahern, Sharon Ahern

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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.