Billy Roberts Books

Super practical, easy-to-follow and fun guide to harnessing your psychic abilities by an internationally renowned psychic.Discover your full potential with the help of the simple techniques and exe...

The magic locker

By Billy Roberts

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So You Want to be Psychic?

By Billy Roberts

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Clairvoyance, healing, precognition, and mediumship: these are all examples of psychic powers that anyone can develop-thanks to the simple techniques and exercises developed by renowned psychic Bil...

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.