John Stevens Books

The insightful martial arts biography of Yamoaka Tesshu, the larger-than-life samurai who founded his own school of swordsmanship and helped restore practical imperial rule to Japan   Master s...

Aikido is the "Art of Peace," a discipline that emphasizes harmony and the peaceful resolution of conflict. Far more than a self-defense technique, Aikido is a physical and spiritual discipline tha...

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.