Geoffrey Thorne Books

Green Lantern Vol. 2: Horatius

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The Green Lantern Corps continue their missions, led by John Stewart, including Teen Lantern Keli Quintela and Far Sector star Sojourner "Jo" Mullein!The mystery of the Dark Sector begins to unrave...

Blood Syndicate Season One

By Geoffrey Thorne, CHRISSCROSS

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Liga de la Justicia num. 7 122

By Ram V Ram V, Chriscross Chriscross, Geoffrey Thorne, Steve Pugh, Francisco San Rafael Simo, Brian Michael Bendis, Sumit Kumar

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Star Trek. Titan. Schwert des Damokles.

By Geoffrey Thorne

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Pangaea

By Kirsten Beyer, Geoffrey Thorne, Ilsa Bick, Michael Friedman, Lawrence Schoen

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X-FORCE BY GEOFFREY THORNE VOL. 1: FRACTURES

By Geoffrey Thorne

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From the ashes of the Krakoan era, tech mutant Forge leads an all-new, all-different X-Force strike team!In a fractured world, the brilliant mutant Forge uses his powers of invention to devise the...

X-Force By Geoffrey Thorne Vol. 2: The Solution

By Geoffrey Thorne

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Tech-inventor mutant and longtime X-Man Forge leads an all-new, all-different X-Force strike team!The mysterious forces circling X-Force begin to come into focus, and the fractures were just the be...

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.