Clay Griffith Books

Flash: The Haunting of Barry Allen

Average: 3.00, 2 Ratings

An original novel by Clay Griffith & Susan Griffith based on the hit Warner Bros. series created by Greg Berlanti & Andrew Kreisberg & Geoff Johns Speeding through Central City, Barry Allen is met...

The Kingmakers

By Susan Griffith, Clay Griffith

Average: 0.00, 0 Ratings

The Shadow Revolution: Crown & Key

By Susan Griffith, Clay Griffith

Average: 0.00, 0 Ratings

A thrilling new Victorian-era urban fantasy for fans of Kevin Hearne’s Iron Druid Chronicles, the Showtime series Penny Dreadful, and the Sherlock Holmes movies featuring Robert Downey, Jr. &...

The Undying Legion: Crown & Key

By Susan Griffith, Clay Griffith

Average: 0.00, 0 Ratings

A thrilling new Victorian-era urban fantasy for fans of Kevin Hearne’s Iron Druid Chronicles, the Showtime series Penny Dreadful, and the Sherlock Holmes movies featuring Robert Downey, Jr. &...

The Conquering Dark: Crown & Key

By Susan Griffith, Clay Griffith

Average: 0.00, 0 Ratings

A thrilling new Victorian-era urban fantasy for fans of Kevin Hearne’s Iron Druid Chronicles, the Showtime series Penny Dreadful, and the Sherlock Holmes movies featuring Robert Downey, Jr. &...

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.