Eirik Gumeny Books

Exponential Apocalypse

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there Had Been Twenty-two Apocalypses To Date. There Were Now Four Distinct Variations Of Humanity Roaming The Earth - Six, If You Counted The Undead. It Had Been Suggested That There Really Should...

Revenge-Aroni

By Eirik Gumeny, Eirik, Gumeny

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Black Hole, Son!

By Eirik Gumeny

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Exponential Apocalypse: Dead Presidents

By Eirik Gumeny

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End of Everything Forever

By Eirik Gumeny

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Screw the Universe

By Eirik Gumeny, Stephen Schwegler

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Store Crossed

By Eirik Gumeny

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Grimm Tales

By Ken Bruen, Absolutely Kate, John Kenyon, Patricia Abbott

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Soul Jar

By Nicola Griffith, Annie Carl, A. J. Cunder, Raven Oak, Eirik Gumeny

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Foreword by Nicola Griffith, author of Hild and Spear Too often, science fiction and fantasy stories erase—or cure—characters with disabilities. Soul Jar, edited by author and bookstore owner Annie...

Greater Than His Nature

By Eirik Gumeny

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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.