I was going through one article here and the topic was "Changing the Size and Appearance of the Unity Launcher" which required to open up CompizConfig from System Settings --> Desktop. I could find System Settings and could reach to control panel but cannot locate either Desktop or CompizConfig. When i go to Software center and search for compizconfig, it says that it is already installed.But when i search it from the list of installed applications, i couldn't find it.??
CCSM (compizconfig-settings-manager) is not installed by default. To install it go to the Software Center or click on the link below:
Then you can open it by typing
ccsm in the Dash or run it from System Settings
Warning: ccsm can lead to unwanted effects that may be hard to overcome and may leave you without a desktop (see also this question for more background information).
You may have installed simple-ccsm instead.