Her writing career spanned four decades, producing more than forty books. Her debut, Wilkins' Tooth (1973), launched a remarkably prolific career. She is best known for the Chrestomanci series, beginning with Charmed Life (1977), which won the Guardian Children's Fiction Prize. Her most internationally famous work, Howl's Moving Castle (1986), was adapted into an acclaimed animated film by Studio Ghibli's Hayao Miyazaki in 2004.
Other notable works include Dogsbody (1975), Fire and Hemlock (1985), the Dalemark Quartet, and The Tough Guide to Fantasyland (1996), a witty satire of fantasy clichés.
Renowned for inventive magic systems, complex characters, and sharp humor, Jones influenced generations of writers, including Neil Gaiman. She received the World Fantasy Award for Life Achievement in 2007 and the Mythopoeic Fantasy Award multiple times. She passed away in 2011, leaving an enduring legacy in fantasy literature.