Goodwin published a book in 1992 called "Dancing in the Distraction Factory" where he came up with codes and conventions for music videos. He identified 7 key features of music videos: 1) They demonstrate genre characteristics, 2) There is a relationship between lyrics and visuals, 3) There is a relationship between music and visuals, 4) They include close-ups of the artist, 5) Artists develop recurring visual motifs, 6) They frequently reference the notion of looking, and 7) Often include intertextual references to popular culture. Goodwin's theory provided a framework to analyze how elements are commonly used in music videos.