Photographers sometimes use the rule of thirds when they are taking pictures. When taking a landscape shot, this could mean 1/3 sky and 2/3 land (like the photo above).

Or you could try 2/3 sky and 1/3 land like the photo below. Actually, in this case it's 1/3 water.

When I am taking pictures, thinking about thirds helps me remember to arrange the elements in my photographs. Landscape shots that have the horizon line right across the middle of the picture tend to be less pleasing to the eye.

Now that you know this rule, go ahead and break it! Rules are made to be broken, of course, especially because there are no rules in art. I happen to love Hiroshi Sugimoto's seascapes. The horizon line always divides the image exactly in half.

Can you find a landscape photo and see how the horizon line divides the picture? Is it in half, thirds, or some other fraction? Why do you think the photographer put it where it is?