1. The document provides biographical information about American musician John Mayer, including details about his six albums and analysis of the artwork for each album.
2. The album artworks are analyzed in relation to various communication and media theories, with the analyses finding that the artworks generally conform to expectations of Mayer's genre and represent themes or messages related to the music on each album.
3. The analyses find that the artworks create meanings and expectations for listeners through the use of symbols, representations, contexts and other techniques addressed by theories including Barthes' semiotics, Baudrillard's hyperreality, and Saussure's semiotics among others.