Dr Scott A Johnson Books

"Would you be able to survive during a crisis if you were cut off from vital medical treatment and prescription medications? Hundreds of thousands of people have been forced to do exactly this duri...

What Big Pharma Doesn't Want You to Know about Essential Oils

By Scott A. Johnson

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Exploiting elaborate and aggressive marketing strategies, Big Pharma has seized hundreds of billions of dollars over the last several decades by creating customers instead of cures. Their unlimited...

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.