Touchégg is an app that runs in the background and transform the gestures you make on your touchpad or touchscreen into visible actions in your desktop.
For example, you can swipe up with 3 fingers to maximize a window or swipe left with 4 finger to switch to the next desktop.
Many more actions and gestures are available and everything is easily configurable.
Download and install program you can on official Git repository: https://github.com/JoseExposito/touchegg