Brian Azzarello Books

Hellblazer: Hard Time

By Richard Corben, Brian Azzarello

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Absolute Luthor Joker (2024 Edition)

By Brian Azzarello

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The acclaimed, best selling tales starring two of the DC Universe's greatest villains are collected in one oversized, slipcased edition.These hard-hitting tales starring two of DC's top villains gi...

100 Bullets Book Two (2025 Edition)

By Brian Azzarello

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How far would you go for revenge? If you were given a chance at deadly retribution with a guarantee that the law could not touch you, would you take it?That’s the opportunity that a man calle...

100 Bullets Book Three (2025 Edition)

By Brian Azzarello

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To kill without consequence: If you were given a chance at deadly retribution with a guarantee that the law could not touch you, would you take it?That’s the opportunity that Agent Graves pro...

The Creeping Below

By Brian Azzarello

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THE GODS ABOVE, THE CREEPING BELOWVal, an American heavy metal fanatic, is on her dream vacation: attending the Inferno Metal Festival in Oslo, Norway. There she meets a charismatic young band, who...

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.