In the arts and literature, the term avant-garde (from French meaning 'advance guard' or 'vanguard') identifies an experimental genre or work of art, and the artist who created it, which usually is aesthetically innovative, whilst initially being ideologically unacceptable to the artistic establishment of the time. The military metaphor of an advance guard identifies the artists and writers whose innovations in style, form, and subject-matter challenge the artistic and aesthetic validity of the established forms of art and the literary traditions of their time; thus, the artists who created the anti-novel and surrealism were ahead of their times.
As a stratum of the intelligentsia of a society, avant-garde artists promote progressive and radical politics and advocate for societal reform with and through works of art. In the essay "The Artist, the Scientist, and the Industrialist" (1825), Benjamin Olinde Rodrigues's political usage of vanguard identified the moral obligation of artists to "serve as [the] avant-garde" of the people, because "the power of the arts is, indeed, the most immediate and fastest way" to realise social, political, and economic reforms.
