Joseph Maddrey Books

Nightmares in red, white, and blue

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"This survey of the pivotal horror films produced in America examines the history of the genre as a reflection of cultural changes in the United States. It explores the origins of the genre and fol...

The making of T.S. Eliot

By Joseph Maddrey

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"Eliot remains one of the world's most celebrated 20th century poets. He is often cited as an authority on modern art, philosophy, and religion, despite that his words are cited in an overwhelming...

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.