Ernest Cline is an American author and screenwriter, best known for his debut novel, Ready Player One, published in 2011. The book, which combines elements of science fiction and nostalgia for 1980s pop culture, became a bestseller and was later adapted into a film directed by Steven Spielberg in 2018. Cline's writing often explores themes of technology, gaming, and virtual reality. In addition to Ready Player One, Cline has written other works, including the sequel, Ready Player Two, released in 2020. He is also known for his screenplay for the film Fanboys, which celebrates the culture of Star Wars fandom. Cline's passion for video games and geek culture is evident in his storytelling.