John Cassaday Books

Star Wars Graphic Novel Volume 1

By John Cassaday, Laura Martin, Jason Aaron

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Astonishing X Men.

By John Cassaday, Joss Whedon

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The newly re-formed X-Men team, under the leadership Cyclops and Emma Frost, is ready to astonish the world, but breaking news about a cure for the mutant gene takes the wind out of their sails. Pl...

Astonishing X Men Vol. 2

By John Cassaday, Joss Whedon

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A death at Xavier Institute reveals an enemy within the Institute and the X-Men must depend on each other more than ever as their world goes crazy around them. Meanwhile, an alien race watches and...

Astonishing X Men Vol. 1

By John Cassaday, Joss Whedon

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Astonishing X Men Vol. 1

By John Cassaday, Joss Whedon

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Fallen Son

By John Cassaday, Ed Brubaker, Leinil Yu, John Romita Jr., Steve Epting, Ed McGuiness, Jeph Loeb, David Finch

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Uncanny Avengers Omnibus

By Gerry Duggan, John Cassaday, Salvador Larroca, Rick Remender, Olivier Coipel, Adam Kubert, Steve McNiven, Daniel Acuna

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Absolute Planetary

By John Cassaday, Warren Ellis

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Planetary Book One

By John Cassaday, Warren Ellis

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Planetary Vol. 2

By John Cassaday, Warren Ellis

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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.