In photography, diagonal lines can have a very powerful effect on the composition of an image. They create a point of interest for the viewer as they intersect with other lines, as seen in Gerry Suchy’s picture below. In this work, the stark black lines of the escalator cut through the horizontal lines of the tiled wall, drawing the viewer to the figures on the escalator. For many, the movement of the diagonal line in the frame from the bottom left to the top right is a natural direction for our eyes to follow, an association typical of people who speak languages that are written from left to right.