Andrew Eddy Books

Turbografx-16 and TurboExpress Secrets

By Rusel DeMaria

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TurboGrafx 16 and TurboExpress Secrets Volume 2

By Donn Nauert, Andrew Eddy

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Super NES Games Secrets

By Rusel DeMaria, Andy Eddy, Andrew Eddy, Zach Meston

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Sega Genesis Secrets Volume 4 Prima s Secrets of the Games

By Rusel DeMaria, Donn Nauert, Andrew Eddy

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Sega Mega Drive Secrets Volume 4 Sega Mega Drive Secrets

By Donn Nauert, Andrew Eddy

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Black Caviar is the quickest horse ever clocked in Australian racing and she's taken the international racing world by storm, beating Phar Lap's record with a series of unprecedented wins. From her...

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.