In "The Presentation of Self in Everyday Life," Erving Goffman uses "the term 'performance' to refer to all the activity of an individual which occurs during a period marked by his continuous presence before a particular set of observers and which has some influence on the observers." He labels as "front" the "expressive equipment" that a performer deploys. The front can be atomized into a couple of different parts: the "setting" and "personal front," which itself has two components, "appearance" and "manner." Each of these concepts finds concrete expression in the drama of trial.