Caleb Goellner Books

Teenage Mutant Ninja Turtles

By Caleb Goellner, Dario Brizuela, Billy Martin, Matthew K. Manning, Ferreira Marcelo Illustrator, Chad Thomas, Paul Allor

Average: 0.00, 0 Ratings

Teenage Mutant Ninja Turtles universe

By Caleb Goellner, Flynn Ian Graphic Artist, Giannis Milonogiannis, Bobby Curnow, Chris Mowry, Erika Anderson, Matthew K. Manning, Adam Gorham, Pablo Tunica, David Wachter, Paul Allor, Michael Dialynas

Average: 0.00, 0 Ratings

"Discover the secret origins of the Triceratons: how they began on Earth, what that means for their return, and how they successfully rebelled against their Utrom captors! Plus, the Turtles fight t...

Disney princess the enchanted collection

By Georgia Ball, Caleb Goellner, Dylan C. Bonner, Egle Bartolini, Geoffrey Golden, Chris Dreier, Amy Mebberson, Paul Benjamin

Average: 0.00, 0 Ratings

What would happen if Tiana judged a chili cook-off? Or if Merida took up babysitting? How would Aurora spend a snow day? Jam-packed with wonderful Disney charm and laughter, these enchanting comics...

Ghost Cage

By Caleb Goellner, Nick Dragotta, Frank Martin Jr.

Average: 0.00, 0 Ratings

Amazing World of Gumball

By Caleb Goellner, Mirka Andolfo, Lucie Ebrey, Julia Prescott, Chelsey Furedi

Average: 0.00, 0 Ratings

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.