Justin Jordan Books

Deathstroke

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Slade Wilson once ranked as the world's greatest mercenary. But when his reputation starts to slip, and when a mysterious briefcase enters the equation, the man known as Deathstroke decides to carv...

Superboy

By Justin Jordan

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The Teen of Steel decides it's time to become more proactive in his battle against evil. The H.I.V.E. agency and their psi-operatives are a perfect place to begin. But as Superboy, with help from t...

Green Lantern New Guardians Vol. 4

By Justin Jordan

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"The Templar Guardians have been locked away for millennia, but they have a VERY clear idea of what they need to do next--and of all the Lanterns in the universe, they need a reluctant Kyle Rayner'...

Green Lantern

By Justin Jordan, Robert Venditti

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Green Lantern New Guardians Vol. 6

By Justin Jordan

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"Kyle Rayner's experience beyond the Source Wall has left him slowly losing his grip on reality, and the Guardians are gravely concerned. When help arrives in the form of Highfather, the Guardians...

Savage Things

By Justin Jordan

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Sideways Vol. 1

By Dan DiDio, Justin Jordan

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The Curse of Brimstone Vol. 1

By Justin Jordan

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Moon Girl And The Marvel Universe

By Robbie Thompson, Mike Costa, Brandon Montclare, Justin Jordan

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Call of Duty

By Justin Jordan

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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.