Patrick Ness FRSL is an American-British author, journalist, lecturer, and screenwriter. Born in the United States, Ness moved to London and holds dual citizenship. He is best known for his books for young adults, including the Chaos Walking (2008-2010) trilogy and A Monster Calls (2011).

Chaos Walking is a young adult science fiction series written by American-British novelist Patrick Ness. It is set in a dystopian world where all living creatures can hear each other's thoughts in a stream of images, words, and sounds called Noise. The series is named after a line in the first book: "The Noise is a man unfiltered, and without a filter, a man is just chaos walking." The series consists of a trilogy of novels and three short stories.