Paul Joseph Books

On Cimarron

By Paul Joseph Lederer

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Alexander Graham Bell

By Joseph Paul

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Sketches the life of the man who at the age of twenty-nine was responsible for the invention of the telephone.

Benjamin Franklin

By Joseph Paul

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Focuses on Franklin's creative ideas and inventions while also referring to his accomplishments as a writer, publisher, government official, and patriot.

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.