This book does a good job of providing a review of basic administrator functions. In my case however, it was at too basic of a level. I will still use this book as a reference but most of the topics that I wanted to read about were not covered. I also must give the caveat that I'm looking for very specialized data and it would be very difficult to find a reference book that meets everyone's needs. I have nothing against this book but it didn't meet my needs. I do recommend this book to people that are newer to administrating Linux servers.