A fashion week is a week-long fashion industry event where fashion designers, brands, or "houses" display their latest collections in runway fashion shows to buyers and the media which influences upcoming fashion trends for the current and approaching seasons.
The most prominent fashion weeks are held in the fashion capitals of the world—in chronological order, New York City, London, Milan, and Paris, or the "Big Four". The consecutive fashion weeks of the Big Four are referred to as fashion month.