Scott Sonneborn Books

The Phanty-Cats have escaped from the Phantom Zone and finding them won't be easy. These feline felons are invisible! The Space Canine Patrol Agents must rely on their snouts instead of their sight...

Catwoman's classroom of claws

By Scott Sonneborn

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Batman discovers an underground school in Gotham City that is training aspiring villains. On an undercover mission, Robin learns the mysterious head of this school is none other than Catwoman! Orig...

Catwoman s classroom of claws

By Scott Sonneborn

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BATMAN

By Scott Sonneborn

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"As a pro wrestler, Killer Croc bullied his opponents inside the ring. As a cutthroat criminal, this ferocious freak forces his competition out of town. Next on his hoodlum hit list is Kite Man, bu...

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.