Derek Guder Books

The End, Lost Souls Edition

By Jeff Konkol, Derek Guder, Tyranny, Martin Tierney, Joseph Tierney, Joseph Donka

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It is 2006 and the Day of Judgment has come and gone. The Lord God as was written saved 144,000 pure souls to join the ranks of Heaven and those marked by the Beast were cast into the Lake of Fire…...

The End: The Boston Massacre (End (Tyranny Games))

By Derek Guder, Joseph Tierney, Derek Guder, Joseph Tierney

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When The End came, only the Meek were left to inherit the Earth. It took thousands of rotting corpses to teach the few living that being "meek" is no longer an option. And the Meek have learned. De...

Zombie Smackdown!

By Gregory Price, M. Alexander Jurkat, Various, Derek Guder, George Vasilakos, Matt Morrow, Ross Isaacs, Fred Jandt, Bryant Durrell, Mark Barnabo, Justin Mohareb, Steven Walmsley, Cary Polkavitz, Travis Ingram

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The rotten do-gooder face was still standing! Despite all of the damage Marauder had done, all the rules he had broken, and all the underhanded tricks he had pulled, Crusher just stood there with t...

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.