Rule of thirds

The rule of thirds, simply put, a guideline for the composition within photography and film.

By splitting the layout of the screen into thirds vertically and horizontally, you'll get 4 line, by placing the subject on the intersection on 2 lines will mean that you have placed the subject in 1 of the thirds.

The rule can also be applied to architecture and other forms of art, by all means it is a way to arrange objects o its more pleasing for the eyes.

This rule also allows the subject to have less empty space surrounding it.