How To View Detailed Disk Usage As Pie Charts In Ubuntu / Linux Mint

Filelight is a cool disk monitoring application that makes it easy to understand how the disk space is currently being used in Linux Mint/Ubuntu by representing it through pie charts.
To install it, open Terminal and type :
sudo apt-get install filelight
Once installed, Filelight will show the default pie chart representing the high level view of disk partition.
To know about how the space is utilized,...