Joshua Williamson Books

Robin Vol. 3: Secrets and Shadows

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Robin and Ravager have caught up with Deathstroke and Respawn! Can they convince Deathstroke to turn himself in…or fight to the death?And what startling revelation does Robin learn that shoc...

Infinite Frontier

By Joshua Williamson

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The next phase of the DC Universe begins here! Dark Nights: Death Metal presented the darkest threats of the Multiverse. DC Future State revealed what may lie ahead. Now it’s time to look int...

Future State: Gotham Vol. 3: Batmen At War

By Dennis Culver

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Whatever happened to Bruce Wayne?!The rumors regarding Bruce’s death have been greatly exaggerated! Now, despite the best efforts of the impostor, Hush, the real deal has returned with the he...

Batman: One Bad Day: Bane

By Joshua Williamson

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A PAST, PRESENT, AND FUTURE DESTROYED BY VENOM!2023 Eisner Nominee - Best Limited SeriesBane broke the Bat—he’s one of the only villains to ever truly vanquish the Dark Knight—but...

Deathstroke Inc. Vol. 1: King of the Super-Villains

By Joshua Williamson

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DC’s deadliest assassin gets a major upgrade, a new mission, and a new partner…Black Canary? Slade Wilson joins a secret organization to take down the biggest villain!After suffering t...

Batman Vol. 6: Abyss

By Joshua Williamson

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The Dark Knight will leave Gotham and enter the Abyss! While unraveling a mystery that involves his closest allies, Batman will come to face-to-face with a new villain who turns the darkness into h...

Dark Nights: Death Metal Omnibus

By Scott Snyder

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Get ready for the earth-shattering encore!When the Earth is enveloped by the Dark Multiverse, the Justice League is at the mercy of the Batman Who Laughs. Humanity struggles to survive in a hellish...

Superman Vol. 1: Supercorp

By Joshua Williamson

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It's the Dawn of the DCU!Superman has returned to Metropolis and his greatest enemy Lex Luthor is finally behind bars. The future of the Superman family has never been brighter! As Clark Kent settl...

Knight Terrors

By Joshua Williamson

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Horror devastates the DC Universe as its greatest heroes confront their worst nightmare in this terrifying epic, perfect for all fans of Batman, Superman, and Wonder Woman!When Batman, Superman, an...

Deathstroke Inc. Vol. 2

By Paolo Pantalena, Joshua Williamson

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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.