Walt Simonson Books

THOR OF THE REALMS

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Collects Thor (1966) #157, #159, #233-234 And #347-349; Thor (2007) #12; Thor: The Trial Of Thor; Mighty Thor (2015) #12; Original Sin #5.1; And Material From Journey Into Mystery (1952) #97 And Th...

Star Wars Legends Epic Collection

By Jo Duffy, Tom Palmer, Walt Simonson, David Michelinie, Joe Brozowski

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X Men Milestones

By Bret Blevins, Louise Simonson, Chris Claremont, Marc Silvestri, Walt Simonson

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X Men Milestones

By John Romita, Louise Simonson, Chris Claremont, Walt Simonson, Ann Nocenti

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Doctor Doom

By Stan Lee, Larry Lieber, Jack Kirby, John Byrne, Walt Simonson

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WOLVERINE OMNIBUS VOL. 2 NEW PRINTING

By Peter David

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The best there is, by some of comics' greatest talents! Wolverine and Havok are drawn into a web of espionage in Russia! An old friend's death leads Logan to Nick Fury, but what is the surprising s...

Eternals

By Sal Buscema, Mark Gruenwald, Peter B. Gillis, Walt Simonson, Roger Stern

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Eternals

By Sal Buscema, Jack Kirby, Peter B. Gillis, Roy Thomas, Walt Simonson

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Star Wars Legends

By Matthew Rosenberg, Archie Goodwin, Al Williamson, Walt Simonson, Carmine Infantino

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Fantastic Four Epic Collection

By Tom DeFalco, Danny Fingeroth, Paul C. Ryan, Walt Simonson, Len Kaminski

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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.