Granted I read an outdated version of this book, I found much of its information to be general enough to apply to even the latest version of Ubuntu. As an Ubuntu newbie, I appreciated both this book's easy-to-understand language that left few concepts undefined and its relative comprehensiveness. Although I wouldn't say this book took me "From Novice to Professional," as its subtitle promises, I would say that I feel fairly grounded in the basics concepts of Ubuntu (and GNU/Linux in general) and am prepared to move on to more specialized books and guides.
I found this far too remedial for my purposes. This is focused on the computer illiterate, which is probably a small segment of users installing and using Linux. I found "Ubuntu for Non-Geeks: A Pain-Free, Get-Things-Done Guide" by Rickford Grant and Phil Bull to have more useful information that goes beyond simply installing and turning on the computer.
This is good if you are considering moving from Windows to Linux. It gives a good overview of all the aspects to consider and serves as a good introduction to the whole concept. You can get a feel for what it will be like if you make the switch.