Provided by Wikipedia Robert Anson Heinlein (; July 7, 1907 – May 8, 1988) was an American science fiction author, aeronautical engineer, and naval officer. Sometimes called the "dean of science fiction writers", he was among the first to emphasize scientific accuracy in his fiction, and was thus a pioneer of the subgenre of hard science fiction. His published works, both fiction and non-fiction, express admiration for competence and emphasize the value of critical thinking. His plots often posed provocative situations which challenged conventional social mores. His work continues to have an influence on the science-fiction genre, and on modern culture more generally.
A writer also of numerous science-fiction short stories, Heinlein was one of a group of writers who came to prominence under the editorship (1937–1971) of John W. Campbell at ''Astounding Science Fiction'' magazine, though Heinlein denied that Campbell influenced his writing to any great degree.
Heinlein used his science fiction as a way to explore provocative social and political ideas, and to speculate how progress in science and engineering might shape the future of politics, race, religion, and sex.
Within the framework of his science-fiction stories, Heinlein repeatedly addressed certain social themes: the importance of individual liberty and self-reliance, the nature of sexual relationships, the obligation individuals owe to their societies, the influence of organized religion on culture and government, and the tendency of society to repress nonconformist thought. He also speculated on the influence of space travel on human cultural practices.