Philip Kindred Dick (December 16, 1928March 2, 1982) was an American writer known for his work in science fiction. He wrote 44 published novels and approximately 121 short stories, most of which appeared in science fiction magazines during his lifetime. His fiction explored varied philosophical and social themes, and featured recurrent elements such as alternate realities, simulacra, monopolistic corporations, drug abuse, authoritarian governments, and altered states of consciousness. His work was concerned with questions surrounding the nature of reality, perception, human nature, and identity.