Geoff Johns Books

Batman Vs. Superman Their Greatest Battles Turtleback School Library Binding Edition

By Various

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Avengers Vol. 3

By Geoff John, Geoff Johns

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Ultimate X Men

By Chuck Austen, Chris Bachalo, Adam Kubert, Kaare Andrews, Esad Ribic, Mark Millar

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Ultimate X Men

By Brian Michael Bendis

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Wolverine is forced to call upon Spider-Man and Daredevil for protection against Weapon X in New York City, and the president decides to assemble a new team of mutants to serve his political ends,...

Constructing Green Lantern

By Ozzy Inguanzo

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JLA JSA

By David S. Goyer, Carlos Pacheco, Geoff Johns

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Batman

By Ed Brubaker, Greg Rucka

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JSA

By David Goyer, Various

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Teen Titans Vol. 3

By Mike McKone, Tom Grummett, Ben Raab, Geoff Johns

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On his own, Gar Logan, a.k.a. Beast Boy, tries to resurrect his acting career in Hollywood, only to find himself framed for a crime he didn't commit. Then, Gar is suddenly normal, but all of the ch...

Tom Strong Book 4

By Alan Moore Undifferentiated, Geoff Johns, Peter Hogan

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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.