John Steven Gurney Books

Dink, Josh, and Ruth Rose tackle an out-of-this-world mystery--in the twelfth A to Z Mysteries Super Edition!Mystery takes off in 3. . . 2. . . 1! Dink, Josh, and Ruth Rose are in Florida, visitin...

A to Z Mysteries Super Edition 13: Crime in the Crypt

By Ron Roy, John Steven Gurney

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Dink, Josh, and Ruth Rose catch a crypt criminal--in the thirteenth A to Z Mysteries Super Edition!Dink, Josh, and Ruth Rose are headed to the Big Apple! They plan to spend time with Ruth Rose's gr...

September Sneakers

By Ron Roy, John Steven Gurney

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Bub Moose

By Bill Wallace, John Steven Gurney, Carol Wallace

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Gerrard Winstanley

By John Steven Gurney

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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.