John Callahan Books

Will the Real John Callahan Please Stand Up?: A Quasi Memoir

By John Callahan, Callahan John

Average: 0.00, 0 Ratings

The king of things and the cranberry clown

By Callahan John

Average: 0.00, 0 Ratings

Kincaid

By John Callahan

Average: 0.00, 0 Ratings

Success in Motion

By John Jack Callahan

Average: 0.00, 0 Ratings

Don't worry, he won't get far on foot

By John Callahan, Callahan John

Average: 0.00, 0 Ratings

Cartoonist John Callahan's dark (but still inspiring) memoir of his troubled family history, and his battles to recover from alcoholism and to function in life as a quadrapalegic.

A Man You Could Love

By John Callahan

Average: 0.00, 0 Ratings

A Man You Could Love

By John Callahan

Average: 0.00, 0 Ratings

Empowering Consumers with How To Torials

By John Callahan

Average: 0.00, 0 Ratings

Savior of the World

By John Callahan Jr.

Average: 0.00, 0 Ratings

Don T Worry He Won t Get Far on Foot Film Tie in

By John Callahan

Average: 0.00, 0 Ratings

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.