Masthead: The masthead is the title, and is usually the brand or something related to the main topic the magazine covers
Main Coverline: Battle of the Bands, the topic the issue covers. Important to tell people what’s being written about/covered.
Insets: Extra images, fill up extra space and use it for more advertisements of the contents of the magazine.
Plug: Extra things to advertise, using up space. Draw more attention to some merchandising etc.
Captions: Extra information to inform the readers.
Barcode: To scan, pay
Pug: Extra advertisement, the price, logo etc.
Main Coverstar: The main individual or entity being displayed and written about in the magazine.
It’s important to know these elements and technical design conventions in order to create a higher quality magazine that can advertise more effectively. Better to understand the layout of popular magazines, so you can base off it and also improve.