Posters are widely used for advertising and propaganda purposes. In this case, techniques are used to influence the human psyche in order to attract attention and arouse sympathy or dislike for the depicted object.
Artists use various means to attract attention. They can be based on visual perception or on semantic elements.
For example, large areas of bright color or color contrast work effectively.
Introducing variety into monotony is often used, i.e. highlighting one subject from others. So, if you place one white among black TVs, it will definitely attract attention.
One of the techniques used in the poster is the transformation of objects (for example, the gradual development of a person from a monkey). The viewer contemplating the transformation is likely to follow the process through.
To attract attention, artists often use images of people. human gestures and facial expressions are more informative than corresponding inscriptions.
It is difficult for a person to concentrate on a large subject, so the center of the composition, containing the main meaning, should be small, but clearly traced.
Several regularities of the image perception process have been revealed.
First, attention is drawn to the dense accumulation of elements in the drawing (for example, a crowd of people).
A poster on which a combination of objects forms geometric shapes (several cars forming a circle) will definitely attract attention.
The viewers' attention is focused on elements located close to each other (two faces of a couple in love).