Geoff Johns Books

Hawkman

By Rags Morales, Geoff Johns, James Robinson

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Witchblade Compendium Volume 2 Witchblade

By Paul Jenkins, David Wohl, Mike Choi, Chuck Austen, Chris Bachalo, And More, Brian Ching, Geoff Johns, Ron Marz, Francis Manapul

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Metal hurlant

By Samantha Demers, Geoff Johns

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The first of a two-volume anthology featuring science fiction stories from the French magazine Métal Hurlant (Screaming Metal) published between 2001 and 2004.

The reality-shattering world of Flashpoint is back! Legendary DC writer Geoff Johns returns to the story he made famous in 2011, as the Flashpoint Batman searches for answers in a world that should...

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.