Jan Duursema Books

Star Wars Omnibus

By Jeremy Barlow, John Ostrander, Jan Duursema, Tomas Giorello, W. Haden Blackman, Brian Ching, Hoon, Rick Leonardi, Chuck Dixon, Randy Stradley, Brandon Badeaux

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Star Wars Omnibus

By John Ostrander, Jan Duursema, Miles Lane, W. Haden Blackman, Brian Ching, Nicola Scott

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Star wars

By John Ostrander

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It's all-out war as the Sith emperor returns from the dead--stronger, more evil, more determined, and prepared to unleash a new Sith army upon the galaxy. Roan Fel's loyalist Imperials, the Galacti...

Star Wars

By John Ostrander

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Star Wars Legacy

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Darkness

By John Ostrander

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Star Wars The Clone Wars Victories and Sacrifices

By John Ostrander

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Star Wars

By John Ostrander, Jan Duursema, Dan Parsons

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Star Wars Star Wars the Clone Wars

By John Ostrander, Jan Duursema, Dan Parsons

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Star Wars The Clone Wars

By JohnF Ostrander

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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.