Continuing as the second volume, this book is also aimed at the great average middle of computer users, proficient but by no means a technician. We cover more of the same beginner level topics. You gain even more control you could not otherwise have. After replacing Windows with Linux (it runs on Macs, too), there is a lot to learn. It's quite possible the average computer user can learn to run Debian with at least as much savvy as you ran Windows. You don't have to become a computer technician to understand it; it's not that hard. But if computers are your hobby, this is well worth the time and effort to gain expertise.