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Hans Ruedi Giger, known as H.R. Giger, was a prominent Swiss surrealist painter, sculptor, and designer. Recognized for his distinct style characterized by biomechanical elements, Giger's art often explored themes of existence, death, and the merging of organic and mechanical forms. His most notable work is the design of the creature in the movie "Alien," for which he won an Academy Award for Best Visual Effects.