Patrick Gleason Books

Big Burn

By Mick Gray, Peter J. Tomasi, Patrick Gleason

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To Serve and Protect

By Patrick Gleason

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Robin Son of Batman Vol. 1

By Patrick Gleason

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Sub Diego

By Christan Alamy, Patrick Gleason, Will Pfeifer

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Superman

By Peter J. Tomasi, Patrick Gleason, Doug Mahnke

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"Superman's life isn't what it used to be, and he was living with that. But now the world he has built is crumbling away because of a mysterious foe. Will he be able to rescue the life he knew befo...

Superman Vol. 4: Black Dawn (Rebirth)

By Peter J. Tomasi

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Though Superman and his family have found a measure of peace in their adopted town of Hamilton, they’ve also sensed a sinister presence lurking beneath its idyllic rural façade—s...

Hopes and Fears

By Peter J. Tomasi, Patrick Gleason

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Rebirth

By Peter J. Tomasi, Patrick Gleason

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Rebirth

By Peter J. Tomasi, Patrick Gleason

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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.