Prelude to Foundation (Foundation: Prequel, #1)

Prelude to Foundation is a novel by American writer Isaac Asimov, published in 1988. It is one of two prequels to the Foundation series. For the first time, Asimov chronicles the fictional life of Hari Seldon, the man who invented psychohistory and the intellectual hero of the series. The novel was nominated for the Locus Award.