Ivan Reis Books

The prophecy of the Blackest Night has come to pass--a mysterious force is raising deceased heroes and villains into an army of undead Black Lanterns! The combined might of the Green Lantern Corps...

Blackest Night Omnibus (10th Anniversary)

By Geoff Johns

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The haunting epic that plunged the DC Universe into darkness collected in its entirety for the first time ever! The Blackest Night is now here. As black rings rain from the sky former, friends and...

Man of Steel

By Jason Fabok, Ivan Reis, Ryan Sook, Kevin MaGuire, Brian Michael Bendis

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Green Lantern by Geoff Johns Book Two

By Geoff Johns, Ivan Reis

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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.

Ivan Reis Books

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?