Richard L. Wren Books

Justice for Joshua

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"Josh Rogan's days as an internationally renowned martial arts master are behind him and he's settled back into life as a Yosemite Park Ranger, a devoted husband, and a new father to a baby girl. B...

Casey s Slip

By Richard L Wren

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Self publishing

By Richard L. Wren

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If you have wanted to write and publish your own book, and promote it (which you have to do even with traditional publishing), you probably know there are many lengthy manuals on how to do it. This...

Joshua s Revenge

By Richard L. Wren

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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.