Brian Grattan Books

The Rider On The White Horse

By Brian Grattan

Average: 0.00, 0 Ratings

Dragons And Chariots: An Explanation Of Extraterrestrial Spacecraft And Their Propulsion Systems

By Wesley H. Bateman, Brian Grattan, Vywamus

Average: 0.00, 0 Ratings

Mahatma 1

By Brian Grattan

Average: 0.00, 0 Ratings

Mahatmas Ii

By Brian, Grattan, Brian Grattan

Average: 0.00, 0 Ratings

Mahatma I & II: The I Am Presence

By Gratter, Brian Grattan, Brian Grattan, Gratter

Average: 0.00, 0 Ratings

What all of humankind has learned in the past about creation is the way that existence isn't -- a paradox! "I, Vywamus, think that this (Mahatma) is the most important thing that's happened on your...

Mahatma II

By Brian Grattan

Average: 0.00, 0 Ratings

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.