Perception has been one of the most important concepts that scientist have been working on thoroughly. Studies show that the time course of perception is relatively short compared to the improvement of the ability to perceive, which is quite complicated in nature. Having this data at hand enables us to develop presentation methods(Stillings and others, 1995). The things that need to be done to make the presentation easily understood can be grouped as follows :
a. Working on the text of the presentation.
b. The points about presentation methods that should be taken into consideration.