As the winner of the fourth Joan Miró prize, American artist Roni Horn (born 1955) received a monograph exhibition of her work at the Fundació Joan Miró in Barcelona and CaixaForum, which this volume accompanies. Though Horn considers drawing to be the activity unifying all strands of her work, she is prolific across multiple media, including sculpture, photography, books and works on paper. Her artistic practice links aspects of nature, landscape and materiality with the mechanics of perception and communication. As affirmed by this recent award, Horn's oeuvre is endlessly open-ended. Roni Horn: Everything Was Sleeping as if the Universe Were a Mistake includes an interview with the artist by Julie Ault.