For many people, Android 4.4 KitKat will be an ease to use being a system that is very similar to its predecessors. For some however, Android 4.4 will be the first Android operating system that they use. In case that’s you, or you just want to know a little more about the new operating system, then There is a good news for all of you that Google’s official guide on using Android 4.4 KitKat is available for download right now.
The guide is broken down into six chapters and 53 pages worth of information, gives you a good overview of how to use the KitKat flavor of Android.
Source : cnet