Patrick Piazzalunga Books

Capitan America

By Nick Dragotta, Patrick Piazzalunga, Chris Sotomayor, Marco Santucci, Lee Weeks, Roger Stern

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Monsters Are My Business

By Written By Cullen Bunn Illustrated By Patrick Piazzalunga

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From the co-creator of The Sixth Gun and Harrow County comes a new action horror comedy graphic novel!  Meet Tanner "Griz" Grisholm. Along with a shrewd necromancer who wants him dead and a ch...

Project Patron

By Steve Orlando, Patrick Piazzalunga

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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.