Joe Keenan Books

The witty duo from Blue Heaven invade the entourage of a tasteless real estate/media magnate, attempt to turn his talentless wife into a chanteuse, and vie for the affections of a suave magazine ed...

Blue heaven

By Joe Keenan

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Putting on the Ritz

By Joe Keenan

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Using Appleworks in the Classroom

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My lucky star

By Joe Keenan

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Philip Cavanaugh and Claire Simmons are lured to Hollywood by shifty pal Gilbert's offer of a lucrative screenwriting gig. Then comes the news that the project will be graced by Hollywood royalty -...

Blue heaven

By Joe Keenan

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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.

Joe Keenan Books

My Lucky Star

My Lucky Star: A Novel

Blue Heaven

Blue Heaven

Putting on the Ritz

Blue heaven

Putting on the Ritz

Using Appleworks in the Classroom

My lucky star

Blue heaven

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?