The parts of a magazine are
MastHead - Title.
DateLine - Date of publication.
Main Image - Which is practically the main idea of the magazine.
Model Credit - Is just the credit given usually for the model on the cover.
Coverlines - Are lie lines of things that are happening that will show throughout the magazine.
MainCoverlines - Is just the Main coverlines, the main thing the magazine wants you to know.
Left Third - Is what the magazine whats you to see and be able to tell what the magazine is about.
Bar Code - Is a standard bar which everything bought has.
Selling Line - Is like a line said to target certain peoples attention.
All these properties of the cover of a magazine is to grab peoples attention with information of the magazine.