David DeRienzo Books

Hardcore Gaming 101 Digest Vol. 3: The Guide To Retro Horror

By John Szczepaniak, Michael Plasket, Alan Bradley, Kurt Kalata, Jeremy Signor, Sam Derboo, Rob Strangman, David DeRienzo, Ed Burns

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Hardcore Gaming 101 Presents: Sega Arcade Classics Vol. 2

By Cameron Perry, Michael Plasket, Kurt Kalata, Sam Derboo, David DeRienzo, Hardcore Gaming 101

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This is a review, and history book covering video games created by Konami for various gaming systems, and computers. Th majority of the book focuses on two main series, the Contra, and Goemon serie...

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.