Susan Lee Sontag (January 16, 1933 – December 28, 2004) was an American writer and critic. She mostly wrote essays, but also published novels; she published her first major work, the essay "Notes on 'Camp' ", in 1964. Her best-known works include the critical works Against Interpretation (1966), On Photography (1977), Illness as Metaphor (1978) and Regarding the Pain of Others (2003), the short story "The Way We Live Now" (1986) and the novels The Volcano Lover (1992) and In America (1999).
Sontag was active in writing and speaking about, or traveling to, areas of conflict, including during the Vietnam War and the Siege of Sarajevo. She wrote extensively about literature, cinema, photography and media, illness, war, human rights, and left-wing politics. Her essays and speeches drew backlash and controversy, and she has been called "one of the most influential critics of her generation".