Leading lines

I think that photographers can use leading lines to make a strong photograph by drawing the viewers eye towards a certain object. You want the viewer to not see the object at first but follow the line into the direction of the main point. Some natural structuresf leading lines are rivers, fields, trees, snakes, pathways, rocks, the ocean, glaciers, leaves, and the horizon. Some man made structures that show leading lines are bridges, fences, buildings, lines, poles, highways, and wires.