Rick Leonardi Books

VISION & THE SCARLET WITCH: THE SAGA OF WANDA AND VISION

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Collects Giant-Size Avengers (1974) #4, Vision and the Scarlet Witch (1982) #1-4, Vision and the Scarlet Witch (1985) #1-12, West Coast Avengers (1985) #2. The unlikely romance between the Vision a...

Dissolution and Rebirth

By Kieron Dwyer, Rick Leonardi, Chris Claremont, Marc Silvestri, Jim Lee

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X Men Epic Collection

By Chris Claremont, Kieron M. Dwyer, Rick Leonardi, Marc Silvestri, Jim Lee

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Star Wars Legends Epic Collection

By John Ostrander, Jan Duursema, W. Haden Blackman, Rick Leonardi, Chuck Dixon

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SPIDER-MAN 2099 OMNIBUS VOL. 1

By Peter David

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Peter David's futuristic epic, collected in full! The year 2099 is full of menace, but none so insidious as the corrupt corporations that run the world! Miguel O'Hara, his DNA rewritten in an attem...

Hanna Barbera

By James Tynion, Scott Hanna, Rick Leonardi, Mark Russell, Christopher Sebela

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Aliens vs. Predator

By Phill Norwood, Chris Warner, Rick Leonardi, Randy Stradley, Mike Manley

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Three World War

By Wes Dzioba, Mark Pennington, Rick Leonardi, Randy Stradley

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Darth Vader and the Lost Command

By W. Haden Blackman, Rick Leonardi

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First Born Deluxe Edition

By Stjepan Sejic, Stephen Sadowski, Rick Leonardi, Luke Ross, Ron Marz

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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.