Jan Duursema Books

A dazzling new short story featuring Darth Maul, merciless apprentice of evil . . . On the distant planet Dorvalla, precious ore is mined by two competing companies: InterGalactic Ore and Lomm...

Recovery: Star Wars Legends (Short Story)

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As the forces of darkness threaten to engulf the galaxy, one last defiant spark remains. . . . Though the Yuuzhan Vong were victorious in their savage conquest of the planet Duro, they failed to e...

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.