Isaac Asimov (c. 1920–1992) was an American author and professor of biochemistry at Boston University. Renowned as one of the "Big Three" science fiction writers of his era alongside Robert A. Heinlein and Arthur C. Clarke, Asimov was exceptionally prolific, writing or editing more than 500 books and penning an estimated 90,000 letters and postcards. While celebrated primarily for his hard science fiction, his diverse bibliography also spans mysteries, fantasy, popular science, and guides to literary and historical texts.
Asimov's most enduring legacy is his expansive "future history" universe, which seamlessly connects several of his major book series. His seminal Foundation series, which chronicles the fall and rebirth of a galactic empire, won a unique Hugo Award for "Best All-Time Series" in 1966. He also authored the Robot series, featuring works like The Caves of Steel and The Naked Sun, and the Galactic Empire series. Over time, Asimov integrated these narratives into a single cohesive timeline. Beyond his novels, his 1941 novelette "Nightfall" is widely considered one of the finest science fiction short stories ever written.
In addition to fiction, Asimov was a dedicated educator and popularizer of science. His non-fiction works, such as Guide to Science and Understanding Physics, typically explained complex scientific concepts through a historical lens. He wrote extensively on chemistry, astronomy, mathematics, history, and biblical exegesis. A prominent humanist, Asimov served as the president of the American Humanist Association, and his lasting impact on science and culture is commemorated by numerous honors, including an asteroid, a Martian crater, and Honda's ASIMO robot.
