It is said that a picture is worth a thousand words, but no one has ever thought about how much an animation could be worth. If you really want to examine it yourself, you can try to work with screencasts. Recording them in Ubuntu is really simple. However, making a technically advanced screencast can be quite demanding.
Personally for recording purposes I use recordmydesktop, which is very comfortable in use, performs well and has a graphical frontend which makes the configuration process a breeze. To install it with the graphical frontend, just type: