I wonder if it meets Ubuntu's requirements of "free."
Moot. It's an original copyrighted work that doesn't incorporate anything released under GPL, Copyleft, or other open sharing licenses. The author seemed to strike a happy balance between the two worlds:
"Pay for print - but "E" is free." (Sorry, I just made that up. Couldn't resist. )
And at 170 pages, once you add in the cost of wear and tear on your printer, the cost of paper and ink (or toner), a binder to put it in, and your time to do it - buying the book at $9.95 from Amazon is probably a whole lot cheaper. Not to mention it's a nicer product.
So even if it is copyrighted (with all that implies), it's still a very nice little book.
Can't have everything I guess.
(But that will only upset the zealots.
Ubuntu's "Official Guide" (released under copyleft) is completely free.
You can download that book for free here: http://www3.vista-se.../24/958328512281.zip