Surrealism is an art style from the 20th century characterized by dream-like, fantastical imagery rendered realistically. It was established by a 1924 literary manifesto. Early Surrealists were influenced by Freud's writings on the unconscious mind and meanings in dreams. They used automatic techniques like ink blots to access the subconscious. Surrealist art may be abstract or feature incongruous juxtapositions meant to reveal hidden perceptions. The movement included visual art as well as literature.