Camera Angles

A popular camera angle used for many magazine covers is the medium close up shot. The front cover on the left shows this. A lot of the time, when magazines use the medium close up shot, the person in the image looks at the camera, creating a direct effect towards to buyer.
I believe magazines use this type of camera angle so that the buyer is attracted to the magazine because of who they see on the front cover. For example, if Cheryl Cole is pictured on the front of a women's magazine, a lot of women may go take a look because of what the magazine may be revealing about Cheryl Cole.
I think that when magazines use a medium close up shot, they are purely trying to capture the audience's attention because of the person on the cover rather than what other magazines may be trying to advertise such as, clothing, products, etc.