Mark Chiarello Books

DC Comics Guide to Coloring and Lettering Comics

By Todd Klein, Mark Chiarello

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The Haunted Mansion: Storm & Shade

By Claudia Gray

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Welcome, foolish mortals, to an original and eerie novel inspired by the Haunted Mansion attraction at Disney Parks!When high school student Audrey Perez moves to a town that's supposedly home to a...

Sherlock Holmes and the Empire Builders

By Andy Bennett, Joel Meadows, Mark Chiarello

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Hellboy Omnibus Boxed Set

By Written By Mike Mignola, John Byrne. Art By Mike Mignola, Duncan Fegredo. Colors By Dave Stewart, Mark Chiarello.

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Hellboy’s major story, available in a special box set for the first time featuring slipcase art by the creator himself! Previously available only as individual volumes, all four Hellboy...

Alien to Zombie

By Kevin Somers, Mark Chiarello

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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.