Whilce Portacio Books

Heroes Reborn

By Whilce Portacio, Ryan Benjamin, Mike Miller, Jeph Loeb, Ed Benes, Scott Lobdell, Jim Lee, Terry Shoemaker

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Essential Punisher Vol. 2 Marvel Essentials

By Eliot R. Brown, Whilce Portacio, Klaus Janson, John Romita Jr., Mike Vosberg, Mark Texeira, Mike Baron, David Ross, Roger Salick, Ann Nocenti

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X Men Gambit Classic Vol. 1

By Mike Collins, Whilce Portacio, Howard Mackie, Bill Jaaska, Jason Gorder, Chris Claremont, Lee Weeks, Jim Lee

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X Men

By John Romita, Whilce Portacio, Fabian Nicieza, Andy Kubert, Tom Raney, Scott Lobdell, John Byrne, Jim Lee

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Essential X Men

By Whilce Portacio, Mark Bagley, Fabian Nicieza, Peter David, Chris Claremont, John Byrne, Jim Lee

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The X-Men are reunited with Professor X, who asks them to help overthrow the Shi'ar tyrant Deathbird ... but all is not as it seems, and the X-Men must deduce the truth before it's too late! Meanwh...

Daredevil Epic Collection

By John Romita, Ron Lim, Whilce Portacio, Fabian Nicieza, Mike Baron, Steve Ditko, Ann Nocenti

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Batman

By Whilce Portacio, Andy Diggle, Richard Friend

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Art Of The Darkness

By Jae Lee, Chris Bachalo, Whilce Portacio, Michael Turner Undifferentiated, And More, Christian Gossett, Dale Keown, David Finch, Marc Silvestri, Tim Hildebrandt, Greg Hildebrandt, Joe Benitez

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Rebirth WETWORKS

By Whilce Portacio, Brandon Choi

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Batman

By Whilce Portacio, Felip Tobar Pastor, Andy Diggle

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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.