Paul Levitz Books

A tantalizing original graphic-novel mystery from Eisner Award winner and Eisner Award Hall of Fame inductee Paul Levitz (Legion of Super-Heroes) and Simon Fraser (Kingsman:The Red Diamond, Doctor...

Legion of Super-Heroes: The Great Darkness Saga Deluxe Edition (2025 Edition)

By Paul Levitz

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The godlike Darkseid emerges in the 30th century with an ingenious plot to finally conquer the universe in this Deluxe Edition hardcover of Paul Levitz and Keith Giffen's timeless Legion of Super-H...

The Legion of Super-Heroes - The Curse Deluxe Edition (New Edition)

By Paul Levitz

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The guardians of the 30th century return to face an all-new host of challenges!Following the events of the critically acclaimed Legion epic THE GREAT DARKNESS SAGA, this long-awaited collection con...

The DC Universe by Steve Ditko Omnibus

By Paul Levitz

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The innovative DC work of legendary comic book artist and writer Steve Ditko, the co-creator of Spider-Man, is collected in a massive hardcover omnibus!After his historic work at Marvel, co-creatin...

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.