ISO is the sensitivity of the image sensor.
Shutter Speed allows you to take action pictures which is useful for things like sport events.
Aperture is the size of the opening in the lens when a picture is taken, and depending on the size, the picture will be blurry or clear.
Leading Lines draw your eye to a certain area in the photograph.
Depth is basically when you have a main object which catches your eye and multiple layers of a background.
Rule of Thirds
Rule of Thirds states that the main focus of the photograph should be on 1/3 of the photo instead of the middle to be more interesting.
Framing is where you use objects around the main focus to frame the object in a natural way.
Point of View
Point of View is where you get at an interesting angle of place to get a new perspective on an object.