Albert De Guzman Books

Superman: Panic In The Sky

By Bill Oakley, Brett Breeding, Jerry Ordway, John Costanza, Tom Grummett, Jackson Guice, Dan Jurgens, Glenn Whitmore, Albert De Guzman, Jon Bogdanove, Roger Stern, Louise Simonson

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"Brainiac returns to invade the earth with his ultimate weapon, Warworld, a planet-sized satellite built for destruction. With the help of super-powered friends like Wonder Woman, The Flash, Green...

Batman Adventures: Riddle Me This!

By Lee Loughridge, Terry Beatty, Rob Leigh, Tim Levins, Ty Templeton, Tim Harkins, Albert De Guzman, Rick Burchett, Scott Peterson

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Riddler Is At It Again--and Always With A Twist Follow Some Of His Most Riddling Adventures With Batman The Riddler Is Never Easy To Solve...and This Time It's No Different Riddler Continues To Tea...

Green Lantern: Kyle Rayner Rising Compendium

By Various, Ron Marz, Romeo Tanghal, Albert De Guzman, Darryl Banks, Steve Mattsson

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This compendium charts the rise of the Corps’ latest and greatest member as he strives to maintain order in a galaxy without Guardians.Hal Jordan has broken bad. In his grief and fury, he has decim...

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.