This is a realistic painting of bison on a field. This drawing is a good example of representational level because the artist have tried to report what he look and recognize from his environment around and the experience hi had when he saw the bisons on the field. The painting is very realistic and give us a dominating visual experience.
Abstract

In this example of Abstraction the artist tries to delivery a more powerful visual message through the abstract quality of the elements and the whole design by itself. The power of the message is based on the reduction of the realistic visual information and the effective arrangement of the elements which is more significant to the understanding and structuring if the visual message.
Symbolic

In this example we can see the symbols created for the Olympic Games in Beijing 08'. This symbols denote the different sports for the Olympic Games. These symbols are pretty simple and very recognizable; they are easily to connect with the sport that they represent and that makes them effective for the transmission of information.