The Official Ubuntu Book
Most Linux distributions are built to meet a specific purpose; address a specific audience. There are USB-bootable versions, live disks, and versions geared toward scientific research or desktop publishing. Ubuntu Linux is one of the few distributions designed around a philosophy.
The book’s forward and first chapter both discuss this philosophical distribution. Details on installing and configuring Ubuntu begin in chapter 2. The Ubuntu developers have done an outstanding job at making Ubuntu as easy to install as any other distribution, despite its Debian ancestry.
Chapter 3 covers most all the activities the average desktop computer user might need to do in the course of a day.