Foundation is a science fiction novel written by Isaac Asimov. It is set in a future where a mathematician named Hari Seldon predicts the fall of the Galactic Empire and establishes a foundation to preserve knowledge and guide humanity through the dark ages that follow. The book spans centuries and explores the rise and fall of civilizations, the power of psychohistory (a fictional science that predicts the behavior of large populations), and the nature of human progress. Foundation is a seminal work of science fiction and a must-read for fans of epic storytelling.