"Stranger in a Strange Land" is a science fiction novel written by Robert A. Heinlein, first published in 1961. The story follows Valentine Michael Smith, a human raised by Martians, who returns to Earth and struggles to understand human culture and society. His unique perspective challenges social norms and explores themes of love, religion, and individuality. The novel is notable for its exploration of utopian ideals and the concept of free love. It has influenced various cultural movements and discussions about human rights and personal freedom. The book remains a significant work in the science fiction genre, prompting readers to question societal values.