Ernest Cline is an American author who has made a name for himself in the science fiction genre. He is best known for his novels Ready Player One and Armada. Cline's debut novel, Ready Player One, was published in 2011 and quickly became a bestseller, earning praise for its nostalgic references to 1980s pop culture. The novel was later adapted into a film directed by Steven Spielberg. Cline's second novel, Armada, was published in 2015 and also received positive reviews. In addition to his work as a novelist, Cline is also a slam poet and has co-written the screenplay for the film adaptation of Ready Player One.