Robert Anson Heinlein was an American science fiction writer and scriptwriter. American author, whose use of persuasive technical detail to substantiate his flights of imagination made him the most influential science fiction writer since H. G. Wells.
His childhood was spent in Kansas City, Missouri. The outlook and values of this time and place had a definite influence on his fiction, especially his later works, as he drew heavily upon his childhood in establishing the setting and cultural atmosphere.
Heinlein supported himself at several occupations, including real estate sales and silver mining, but for some years found money in short supply.