Prompt
Create a realistic portrait image of Robert Anson Heinlein, a renowned American science fiction author, sitting in a comfortable study with books and papers surrounding him, wearing a pair of reading glasses and holding one of his notable works, such as "Stranger in a Strange Land" or "Starship Troopers", with a warm and introspective expression, in a style that reflects his personality and literary contributions, during the mid-20th century.
