Sarah Thornton (born 1965) is a Canadian-British writer, sociologist, and art critic. She is best known for her incisive investigations into the contemporary art world, blending sociological analysis with vivid narrative. Her bestselling book Seven Days in the Art World (2008) offers a behind-the-scenes look at auctions, biennales, and artist studios, becoming a key text for understanding art market dynamics. She has written for The Economist, The Guardian, and Artforum, and taught at Goldsmiths, University of London. Thornton's work demystifies the art world for general readers while maintaining academic rigor.