Derek Charm Books

Star Wars Adventures 1

By Jon Sommariva, Derek Charm, Sean Parsons, Charlie Kirchoff, Cavan Scott

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Powerpuff Girls

By Alonzo Simon, Justin Eisinger

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Star Wars Adventures

By Arianna Florean, Michael Moreci, Derek Charm, Megan Levens, Valentina Pinto

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Star Wars Adventures Vol. 11

By Michael Moreci, Derek Charm, Tony Fleecs, John Barber

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The Mystery of the Meanest Teacher: A Johnny Constantine Graphic Novel

By Ryan North

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THE MYSTERY OF THE MEANEST TEACHER: A JOHNNY CONSTANTINE GRAPHIC NOVEL is a comedic middle grade graphic novel about two kids with developing magical powers trying to figure out if their schoolteac...

Jughead 2

By Chip Zdarsky, Derek Charm, Gema Moraleda Diaz, Ryan North

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Jughead 3

By Mark Waid, Derek Charm, Ian Flynn, Ryan North, Gema Moraleda

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Las supernenas 2. Mojo al poder

By Nicoletta Baldari, Jake Goldman, Derek Charm, Phil Murphy, Haley Mancini

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Star Wars

By Cavan Scott

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Starfleet Academy

By Mike Johnson, Ryan Parrott, Derek Charm

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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.