Galen Showman Books

Sinergy

By Galen Showman, Kyle Garrett

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Renfield

By Galen Showman, Gary Reed

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Renfield

By Galen Showman, Gary Reed

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Raven Chronicles

By Gene Gonzales, Wayne Vansant, Galen Showman, Gary Reed, Craig Brasfield

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Norse Mythology Volume 3 (Graphic Novel)

By Story By Neil Gaiman. Layouts, Script By P. Craig Russell. Illustrated By David Rubin Colleen Doran Galen Showman, P. Craig Russell.

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#1 New York Times bestselling author Neil Gaiman and Eisner Award–winning comics legend P. Craig Russell breathe new life into the ancient Norse stories in this comic-book adaptation of the h...

Norse Mythology Volume 3 (Graphic Novel)

By Story By Neil Gaiman. Layouts, Script By P. Craig Russell. Illustrated By David Rubin Colleen Doran Galen Showman, P. Craig Russell.

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#1 New York Times bestselling author Neil Gaiman and Eisner Award–winning comics legend P. Craig Russell breathe new life into the ancient Norse stories in this comic-book adaptation of the h...

Deadworld Archives Book Seven

By Galen Showman, Gary Reed, Troy Nixey

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Star wars episode I adventures

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Ring of the Nibelung

By P. Craig Russell

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Raven Chronicles - Volume Three

By Christopher Jones, Galen Showman, Gary Reed, Martin Conaghan, Jim Alexander

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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.