Christopher Cantwell Books

Briar 3

By Christopher Cantwell, German Garcia

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Briar 5

By Christopher Cantwell, Alex Lins

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Briar 6

By Christopher Cantwell, Alex Lins

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Briar 7

By Christopher Cantwell, Alex Lins

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DOCTOR DOOM BY CANTWELL & LARROCA

By Christopher Cantwell

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Marvel’s greatest villain, Doctor Doom, stars in his own blockbuster series! Recently revealed to be portrayed by Robert Downey Jr in the upcoming Avengers Doomsday film!Victor Von Doom is at...

She Could Fly Volume 2: The Lost Pilot

By Christopher Cantwell

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Luna has crash-landed back into her life after spending a year in a mental institution...but that might just mean she's closer to the edge than she's ever been before.After discovering clues about...

Everything Volume 1

By Christopher Cantwell

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EVERYTHING is a gleaming new mega-department store that has everything you want... but it might take away what you need... things like your sanity, or maybe even your life.From wayward teens to lon...

Plastic Man No More!

By Christopher Cantwell

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There’s something very wrong with Plastic Man!Eel O’Brian might be a superhero now—but before he was anything else, he was a crook. Until the accident that turned him into the pl...

Challengers of the Unknown

By Christopher Cantwell

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The Challengers are back to confront mysteries that defy time, space, and everything we think we know!The Challengers of the Unknown are back, and this time, the stakes have never been higher. As t...

Star Trek: Lore War

By Christopher Cantwell

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Following the action of Star Trek: Day of Blood, an all-new crossover event between Star Trek and Defiant is here!Lore War shows us a universe rebuilt in Lore’s image. The crews of the Theseu...

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.