Installing Clockwork recovery mod [GUIDE]

Clockwork Recovery Mod a.k.a. CWM  allows you to perform several advanced recovery, restoration, installation and maintenance operations on your Android device that aren’t possible with the stock recovery, and is one of the most common ways used to gain root access, back up device data, install a custom ROMs, kernels, themes, mods and more.
To see how to install it on your Smartphone go here.