Peter Tomasi Books

Green Lantern

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In order to prevent a grim prophecy from coming true, Guy Gardner, the Honor Lantern of Earth, enters into an alliance with one of the Green Lanterns' deadliest enemies and travels to a dangerous,...

Green Lantern Corps by Peter J. Tomasi and Patrick Gleason Omnibus Vol. 2

By Peter Tomasi

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Beyond sector 2814, the Green Lantern Corps, protect the galaxy from intergalactic threats! From writer Peter J. Tomasi and and artist Patrick Gleason comes the second Omnibus collectionOutsid...

Crisis final

By Peter Tomasi, Grant Morrison, Francisco San Rafael Simo, Doug Mahnke, Matthew Clark

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Final Crisis Companion

By Brad Meltzer, Peter Tomasi, Eric S. Trautmann, Grant Morrison, Greg Rucka

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Green Lantern Corps: Sins of the Star Sapphire

By Peter Tomasi, Patrick Gleason, Drew Geraci

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The Outsiders: Deep

By Lee Garbett, Peter Tomasi, Adam Kubert

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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.