Paul C. Giachetti Books

Watching Time: The Unauthorized Watchmen Chronology

By Rich Handley, Duy Tano, Paul C. Giachetti, Handley, Rich, Cronin, Brian, Tano, Duy, Giachetti, Paul C

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In 1986, the comic-book world experienced a profound paradigm shift, thanks to writer Alan Moore and artist Dave Gibbons. Gone were the long-held notions that crime-fighters always did the morally...

A Matter Of Time: The Unauthorized Back To The Future Lexicon

By Stephen Clark, Pat Carbajal, Rich Handley, Paul C. Giachetti

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Consider yourself a Back to the Future fan, butthead? If you've only watched the films, you've only seen part of the story. "A Matter of Time: The Unauthorized Back to the Future Lexicon" brings yo...

From Aldo to Zira Lexicon of the Planet of the Apes

By John Muir, Pat Carbajal, Rich Handley, Paul Giachetti

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Total Immersion: The Comprehensive Unauthorized Red Dwarf Encyclopedia: A-K

By Paul C. Giachetti

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Total Immersion: The Comprehensive Unauthorized Red Dwarf Encyclopedia: L-Z

By Paul C. Giachetti

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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.