Walt Simonson Books

The first X-Men crossover event — and still the most brutal! When Sabretooth and the Marauders attack the underground outcasts called the Morlocks, the X-Men, X-Factor and the New Mutants join forc...

Thor by Walt Simonson Omnibus

By Walt Simonson

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Thor by Walt Simonson Vol. 1

By Walt Simonson

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The Mighty Thor by Walter Simonson Vol. 3

By Walt Simonson

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The Complete American Gods (Graphic Novel)

By More, Written By Neil Gaiman Illustrated By P. Craig Russell Scott Hampton Glenn Fabry Colleen Doran

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The complete American Gods comic book series, adapted by comics legend P. Craig Russell from the New York Times bestselling and award–winning novel by writer Neil Gaiman, in an affordable pap...

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.