In Shot Framing
In shot framing can be a very powerful tool in directing attention to the main subject or just adding something different/more interesting to the image. Not all are as obvious as this shot from within an old ruined building in the Columbia River Gorge in Oregon, and you don’t necessarily need the frame on all sides, but it's a very valuable technique to add to your armoury.
Framing also helps bring depth to an image by placing something in your foreground beyond which will be more of the image. It can also break up a shot into several smaller shots as the image above does. You can also use framing to direct the eye toward the main topic, or indeed to block off areas that you do not want within the image. Framing can add context and really draw the viewer into the image and the opportunity to use it is far more readily available than you might initially think. The gallery below shows a variety of shots each using framing in one way or another.
Almost anything can be a frame, you can blur out the frame to add even more to the direction of the viewer. You can frame on one side only, you can use people, foliage, buildings, almost anything to create your frame. Just Remember that framing can also be cluttering, so consider first if the frame will add to or detract from the shot.