Howl's Moving Castle is a fantasy novel by British author Diana Wynne Jones, first published in 1986 by Greenwillow Books of New York. It was a runner-up for the annual Boston Globe–Horn Book Award and it won the Phoenix Award twenty years later, recognising its rise from relative obscurity. It was adapted into a 2004 animated film of the same name, which was critically acclaimed and nominated for the Academy Award for Best Animated Feature.