This book is both disappointing and shallow. It teaches you nothing that you can't learn by merely browsing Ubuntu. The introduction is long, boring, irrelevant. Ubuntu is very simple to use now days. No one needs a guidance of how to click it here or there. The part about Ubuntu's installation is poor redundant, and who needs it anyway if all info is on a screen during the installation. Ubuntu's website and help files do much better job on describing its functionality and they are getting updated with Ubuntu, unlike this book. The power of Linux is in its command line. This book does nothing to extend your understanding of it. I found that books freely included with Ubuntu 10.10, 4-Disks DVD Installation and Reference Set
provide much greater info. I firmly believe, that if I spend this kind of money on a book about Linux, assuming there's plenty of free information available out there, it should contribute to my core understanding of a subject. This book is a general chitchat as you can find on countless forums. It gives an impression that authors themselves aren't really knowledgeable. I don't think that real Linux guru will waste his time by describing how he clicks onscreen interface buttons. It is beyond me, how book like that, gets positive reviews unless they are friends and family. That was about the content.
Now few words about the form. As someone else mentioned it, this book apparently is another self published compilation by many authors and it needs an editor. Most of it is very poorly written and inconsistent. Freely available Ubuntu documentation does better job. I give it 2 stars because they tried, but I can't recommend this reading to anyone. If you wan't really great book on Linux get Unix and Linux System Administration Handbook
. It is a great reading.