I don't know if this is the same book posted earlier, but I think not as thisone is very recent. It is free for the pdf version of a paper Amazon book.http://www.ubuntupocketguide.com/download.html
It is not. This one is only 170 pages compared to 1190+ on the other.
A very good pocket guide. I have read his other book but this is ahandy reference. These eBooks are darned neat!Know of any more?