Christopher Sebela Books

Doomed

By Raffaele Ienco, Mark Bagley, Karl Kesel, Matt Fraction, Christopher Sebela

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Suicide Squad

By Vita Ayala, Michael Moreci, Christopher Sebela

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Injustice Ground Zero

By Christopher Sebela

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Injustice

By Christopher Sebela

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"This is it! The epic conclusion to Harley Quinn's twisted retelling of the story of the hit video game Injustice: Gods Among Us! Harley and the Joker are back together, but is Harley Quinn the typ...

Hanna Barbera

By James Tynion, Scott Hanna, Rick Leonardi, Mark Russell, Christopher Sebela

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Pantomime 1

By David Stoll, Christopher Sebela

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Pantomime 2

By David Stoll, Christopher Sebela

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Pantomime 4

By David Stoll, Christopher Sebela

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Pantomime 5

By David Stoll, Christopher Sebela

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Kiss Vampirella TP

By Annapaola Martello, Christopher Sebela

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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.