Ubuntu by default is one of the most easy to use Linux distribution and this is why it is preferred by most of the beginner Linux users. It obviously doesn’t mean that Linux experts do not use Ubuntu. There are tons of official documentation along with numerous how-to tutorials available on a number of websites, blogs and support forums but these resources are available online only and it is difficult for those users who do not have access to internet all the time.
This manual is a step-by-step guide for a complete newbie to understand the working environment and to get Ubuntu know in a better manner. It provides step of installation, an insight to Unity desktop environment and detail as minute as the network connection symbol. A good help for people who are absolute beginner to Ubuntu and do not have regular connection to internet.
The trend to provide version specific manuals started with Ubuntu 10.04. User guide for Ubuntu 12.04 saw many changes. Continuing the same tradition, the Ubuntu manual for 12.10 is available for download.
Alternatively, if you prefer the print version, you can buy it for a small fee.
By the way if you are looking for similar guide to help you tweak Ubuntu Unity, you can also get the free e-book of Ubuntu Unity customization compiled by some Ubuntu enthusiast.