Geof Isherwood Books

Legend of Tarrow Tell

By Geof Isherwood

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Doctor Strange Sorcerer Supreme Omnibus Vol. 2

By Jean Marc Lofficier, Geof Isherwood, Roy Thomas, Len Kaminski

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AVENGERS: THE GATHERING OMNIBUS

By Bob Harras

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One of the most shocking stories in Avengers history! When the Swordsman returns from the dead with the mysterious Magdalene by his side, a sprawling saga begins - and at its heart stands the shado...

Conan Rey no 05 11

By Alan Zelenetz, Geof Isherwood, Victor Manuel Garcia De Isusi, Marc Silvestri

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Fantastic Four Inhumans

By Geof Isherwood, Mike Kanterovich, Roy Thomas, Tom Defalco, Glenn Herdling

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DOCTOR STRANGE EPIC COLLECTION: NIGHTMARE ON BLEECKER STREET

By Len Kaminski

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Powerless! When Clea's actions free the dread Dormammu, Doctor Strange beseeches the all-powerful Vishanti for aid. But his mystical patrons have a request in return - and when Strange refuses, he...

Great Moves

By Robert Edison Sandiford, Geof Isherwood

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The Chronicles of King Conan Volume Five

By Chris Warner, Alan Zelenetz, Geof Isherwood, Marc Silvestri, Dave Simons

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Chronicles of Conan Vol. 26

By Val Semeiks, Geof Isherwood, Adam Kubert, Ernie Chan, Vincent Giarrano

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Chronicles of King Conan

By Geof Isherwood, Christopher J. Priest

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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.