Doug Mahnke Books

Stormwatch

By Doug Mahnke, Christos N. Gage

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Team Zero

By Doug Mahnke, Chuck Dixon

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DC Comics

By Geoff Johns, Rags Morales, Paul Cornell, Greg Capullo, Grant Morrison, Doug Mahnke, Scott Snyder, Scott Lobdell, Yanick Paquette, Jim Lee

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Dark Nights: Metal: The Resistance

By Bryan Hitch

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The alternate, twisted versions of Batman--the Seven Dark Knights of the Dark Multiverse--are hunting the Justice League as the Leaguers attempt to locate artifacts that might protect Earth. One by...

Jla

By J. Kelly

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JLA

By Joe Kelly, Doug Mahnke

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The Mask Returns

By John Acrudi, Doug Mahnke

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The Mask Limited Edition Box Set

By Doug Mahnke, John Arcudi

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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.