The Caves of Steel is a science fiction novel written by Isaac Asimov. It is the first book in the Robot series and introduces the character of detective Elijah Baley. Set in a future where Earth is overpopulated and humans coexist with humanoid robots, the story follows Baley as he investigates a murder in a city dominated by robots. With its blend of mystery and social commentary, The Caves of Steel is a must-read for fans of the Robot Revolution Saga.