Tropic of Cancer is an autobiographical novel by Henry Miller that is best known as "notorious for its candid sexuality", with the resulting social controversy considered responsible for the "free speech that we now take for granted in literature." It was first published in 1934 by the Obelisk Press in Paris, France, but this edition was banned in the United States. Its publication in 1961 in the United States by Grove Press led to obscenity trials that tested American laws on pornography in the early 1960s. In 1964, the U.S. Supreme Court declared the book non-obscene. It is regarded as an important work of 20th-century literature.