Headroom and Lookroom

 Headroom is the term used to refer to the amount of space between ones head and the top of the frame. Lookroom is the amount of space in front of ones face in the frame. Leadroom is the amount of space in front of a moving object. These are important because these all give an impression on the viewer. Headroom, if done correctly, wont make the subject look like he is shrinking or going to bump his/her head. Lookroom will give an impression of looking somewhere, and leadroom will give the impression of movement.