Camera shots

Yesterday in 10m students, have been learning about camera angles but not only angles but also shots.I have learnt many things about camera shots such as close up, Medium Shot,  Close-up,  Long Shot,  Low Angle, Extreme Close-up, The Over The Shoulder and the birds eye. But why do directors use things like extreme close up well the extreme close-up shot is traditionally used in film to allow the viewer to enter the character's intimate space, revealing certain characteristics and emotions, So here are some pictures of different camera shots.