Chad Thomas Books

Cat Ninja Box Set

By Matthew Cody, Yehudi Mercado, Colleen AF Venable, Marcie Colleen, Chad Thomas

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Cat Ninja

By Warren Wucinich, Matthew Cody, Chad Thomas

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Time Buddies

By Matthew Cody, Colleen AF Venable, Marcie Colleen, Chad Thomas

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Time Buddies

By Matthew Cody, Colleen AF Venable, Marcie Colleen, Chad Thomas

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Teenage Mutant Ninja Turtles Amazing Adventures: The Meeting of the Mutanimals

By Matthew K. Manning

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All-ages action building on the hit Nickelodeon cartoon series! Follow the Turtles’ adventures in the stories "The Meeting of the Mutanimals," "Zodiac," "Zine-Age Mutant Ninja Turtle," and "D...

Star Wars Adventures Vol. 5

By Pierrick Colinet, Nick Brokenshire, Elsa Charretier, Chad Thomas, John Barber

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Rise of the Teenage Mutant Ninja Turtles

By Matthew K. Manning, Chad Thomas

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Rise of the Teenage Mutant Ninja Turtles: The Big Reveal

By Matthew K. Manning Chad Thomas

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The Turtles are back in an all-new animated series from Nickelodeon: new characters, new attitude, and a new age of mutant madness begins here.The TMNT are in a bitter fight with each other over an...

Rise of the Teenage Mutant Ninja Turtles: Sound Off!

By Matthew K. Manning Chad Thomas

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New characters, new attitude, and a new age of mutant madness continues in this graphic novel based on the Nickelodeon animated series.Join Raph, Leo, Donnie, Mikey, and April O'Neil in this exciti...

Erotic Tales of Pure Pleasure

By Chad Thomas

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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.