Leading lines help lead the viewer through the image and focus attention on important elements. Anything from paths, walls or patterns can be used as leading lines. Take a look at the examples below.
In this photo of the Eiffel Tower, I used the patterns on the paving stones as leading lines. The lines on the ground all lead the viewer to the Eiffel Tower in the distance. You’ll also notice that I used a centred composition for this scene. The symmetry of my surroundings made this type of composition work well.
Leading lines do not necessarily have to be straight as illustrated by the picture above. In fact curved lines can be very attractive compositional features. In this case, the path leads the viewer to the right of the frame before swinging in to the left towards the tree. I also made use of the rule of thirds when composing the shot.