"Half of a Yellow Sun" won the 2007 Orange Prize for Fiction in the women-only section. The award is given annually for the best original full-length book; Adichie gained £30,000 as a reward for winning the prize. "Purple Hibiscus", her first novel, made the Orange Prize shortlist in 2004, and because of the success of "Half a Yellow Sun", critics have said that Adichie may have even more success in the future.