The fact that we read from left to right strongly influences the ways we "read" images. For example, diagonal lines that are higher on the right generally appear to be more dynamic to most people than those that are higher on the left.
First you must select one of the lines located on the top left of the exercise area. The buttons on the bottom left allow you to change the size and value (light to dark). You can also slide the Rotate button back and forth to rotate the line. Click the Reset button to start over again. Position the lines to create a sense of movement, weight, balance, congestion or chaos.