Cinnamon is a popular Linux desktop based on GTK+ that got its start as a fork of GNOME Shell. Cinnamon was created for the Linux Mint distro, but you can also use it in Ubuntu.
Note: The source site for this tip has posted the following warning so please bear it in mind before you read the install instructions below:
Warning: If you are using any other Mint application, remove that application and PPA from your system. If you added our Mint PPA first remove it with this command:
sudo apt-get install ppa-purge && sudo ppa-purge ppa:noobslab/mintMore at Noobs Lab
Here's how you can install the Cinnamon desktop in Ubuntu 14.04.
1. Open a terminal window.
2. Type in the following commands then hit Enter after each:
sudo add-apt-repository ppa:lestcape/cinnamon
sudo apt-get update
sudo apt-get install cinnamon
3. Use these commands to remove Cinnamon:
sudo apt-get install ppa-purge
sudo ppa-purge ppa:lestcape/cinnamon
Image credit: Noobs Lab
Source: Noobs Lab
Additional resources for Cinnamon
Additional Ubuntu resources