Ubuntu for Non-Geeks, 4th edition

The book Ubuntu for Non-Geeks, 4th edition is a pain-free, get-things-done guide, by Rickford Grant with Phil Bull. Available for less than 35$ for the paper version including the ebook version or for less than 18$ for the ebook version only (PDF, Mobi, and ePub). Update: The included CD runs fine on Intel based MAcs, too.