Magazine cover design.

Masthead: The name of the magazine is displayed in a specific typeface. This is the visual branding of the title and is often done in a specially designed typeface to be recognisable and unique. The masthead is usually used on the contents page inside as well as the front cover, and as a logo for advertising and branding.
Dateline: Month and year of publication, often with the price. A monthly magazine will hit the news stands the month before the cover date.
Main image: In this case it is Kristen Stewart. The image is used in a classic way. The face is big enough to stand out on the news stand with Kristen making full eye-contact.
Model credit: This says 'RISING STAR KRISTEN STEWART'. It is unusual for such a credit to appear on a magazine cover, but it is often done on fashion magazines. The photographer and model credit is sometimes on the contents page.
Coverlines: Magazines use a lot of coverlines, which are distributed around the main image without detracting from it too much. A mistake often made with coverlines is that they can run over an image that has a lot of colour changes, rendering the words invisible.
Main coverline: This is usually large - taking up around a quarter of a magazine cover. It comes in layers, often in different colours. It promotes the main feature of the issue, "All the fashion trends from A-Z". Note this is placed against the darkest part of the image, showing clearly.
Left third: The left third of a magazine cover is vital for sale in shops where the magazine is not shown full-frontage. The title must be easily recognisable in a display of dozens of competitors. The start of the masthead is important here, as are short cover lines that are easy to read.
Bar code: Standard bar code used by retailers.