John Steven Gurney Books

Calendar Mysteries 5

By Ron Roy, John Steven Gurney

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A to Z Mysteries Super Edition 12

By Ron Roy, John Steven Gurney

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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...

A to Z Mysteries Boxed Set: Every Mystery from A to Z!

By Ron Roy, John Steven Gurney

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Give the gift of mystery with this complete collection boxed set filled with the beloved A to Z Mysteries® series that has inspired young readers for more than 25 years!Help Dink, Josh, and Rut...

Werewolves Don t Go to Summer Camp

By Debbie Dadey, Marcia Thornton Jones, John Steven Gurney

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May Magic

By Ron Roy, John Steven Gurney

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Colossal Fossil

By Ron Roy, John Steven Gurney

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Dracula Doesn t Rock N Roll

By Debbie Dadey, Marcia Thornton Jones, John Steven Gurney

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Ninjas Don t Bake Pumpkin Pies

By Debbie Dadey, John Steven Gurney, Marcia T. Jones

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The Bride Of Frankenstein Doesn t Bake Cookies

By Debbie Dadey, John Steven Gurney, Marcia Thornton Jones

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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.