Doug Mahnke Books

War of the Green Lanterns. Writers Geoff Johns Peter J. Tomasi

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The Greatest Batman stories ever told.

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This anthology collects Batman tales from Detective Comics (1937-2011) #31-32, 211, 235, 345, 404, 429, 437, 442, 457, 474, 482, and 500; Batman (1940-2011) #1, 25, 47, 61, 156, 234, 250, and 312;...

Seven Soldiers of Victory

By Grant Morrison

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Justice League of America

By Denny O Neil, Martin Pasko, Gardner F. Fox, Gerry Conway, J.M. DeMatteis

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Seven Soldiers of Victory

By Grant Morrison

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Superman

By Mark Schultz, Peter David, Joe Kelly, Jeph Loeb, Joe Casey

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Collects the entire saga of Our Worlds at War, in which Superman and Earth's mightiest heroes face the ultimate destructive force, Imperiex, to stop it from destroying the universe in order to rema...

Stormwatch

By Doug Mahnke, Christos N. Gage

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Justice League Elite

By Joe Kelly

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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.