Cecil Castellucci Books

Batgirl Vol. 8: The Joker War

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Stop me if you've heard this one—Knock, knock...…Who’s there? Why, it’s none other than the Clown Prince of Crime himself, the Joker. As the Joker War wreaks havoc all over...

Star Wars Hyperspace Stories

By Amanda Deibert, Cecil Castellucci, Michael Moreci

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Star Wars Hyperspace Stories

By Cecil Castellucci, Amanda Diebert, Michael Moreci

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Star Wars Hyperspace Stories

By Lucas Marangon, Cecil Castellucci, Amanda Diebert

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The Plain Janes

By Cecil Castellucci, Jim Rugg

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Janes in Love

By Cecil Castellucci, Jim Rugg

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The PLAIN Janes

By Cecil Castellucci

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Meet the Plain Janes--artist activists on a mission to wake up their sleepy suburban town. This cult classic graphic novel is perfect for fans of The LumberJanes and Awkward. When artsy misfit Jane...

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.