Foundation is a science fiction novel written by Isaac Asimov. It is the first book in the Foundation series, which explores the rise and fall of a galactic empire. The story follows Hari Seldon, a mathematician who predicts the impending collapse of civilization and establishes a plan to ensure the survival of humanity. Foundation is known for its intricate plotting, political intrigue, and its exploration of themes such as psychohistory and the nature of power.