Free Ubuntu Training pdf

Anyone can download the free Ubuntu Training guides, there's a student version and a instructor version. I have read the first 33 of 398 pages and skimmed the rest, it looks like a real good ebook for any one who wants to learn about Ubuntu Linux. In true Open Source spirit this is free, it's like getting a college course for free. You will also learn about Gnome, Open Office, Open Office, Open Source and much more. I'm sure you could pass the Ubuntu Linux desktop certification (if you have your LPIC) after reading this.