Gene Gurney Books

Women on the march

By Gene Gurney

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Describes job opportunities for women in the armed forces and briefly traces the history of their changing role.

Unidentified flying objects

By Gene Gurney

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Examines the factual basis for various reports of unidentified flying objects.

Americans to the Moon Landmark Giant

By Gene Gurney

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Five Down and Glory A History of the American Air Ace (Literature and History of Aviation)

By Gene Curney, Gene Gurney

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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.