T. Casey Brennan Books

Jose Gonzalez Vampirella Art Edition

By T. Casey Brennan, Steve Englehart, Archie Goodwin, Rich Margopoulos, Josep Toutain, Bill DuBay, Mike Butterworth

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Creepy Archives Volume 8

By Written By T. Casey Brennan Don McGregor Steve Skeates Others Illustrated By Tom Sutton Ernie Colon Richard Corben Others Cover By Basil Gogos

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Now available in a value-priced paperback edition, Creepy Archives Volume 8 features the best in gruesomely gore-geous tales of horror, fantasy, and science fiction from a capable cadre of celebrat...

Vampirella Archives

By Jose Ortiz, Leo Duranona, Pablo Marcos, Martin Salvador, Sanjulian

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DORIAN GRAY DARKER SHADES

By Robert E. Wronski Jr., T. Casey Brennan, Kevin Heim, Christofer M. Nigro, David MacDowell Blue, Peter Rawlik, Christofer Nigro

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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.