Garth Nix has been a full-time writer since 2001. He has also worked as a literary agent, marketing consultant, book editor, book publicist, book sales representative, bookseller, and as a part-time soldier in the Australian Army Reserve. Garth's books include the award-winning fantasy novels Sabriel, Lirael and Abhorsen and the science fiction novels Shade's Children and A Confusion of Princes. His fantasy novels for children include The Ragwitch; the six books of The Seventh Tower sequence; The Keys to the Kingdom series; and the Troubletwisters books (with Sean Williams). More than five million copies of Garth's books have been sold around the world, his books have appeared on the bestseller lists of The New York Times, ‘Publishers Weekly', The Guardian and The Australian, and his work has been translated into 40 languages.

Garth Nix was born in 1963 in Melbourne, Australia. A full-time writer since 2001, he has worked as a literary agent, marketing consultant, book editor, book publicist, book sales representative, bookseller, and as a part-time soldier in the Australian Army Reserve. His books include the award-winning young adult fantasy novels Sabriel, Lirael, Abhorsen, Clariel, Goldenhand, and Angelmage; the dystopian novel Shade's Children; the space opera A Confusion of Princes; and a Regency romance with magic, Newt's Emerald. His fantasy novels for children include The Ragwitch; the six books of The Seventh Tower sequence; The Keys to the Kingdom series; Frogkisser!; the Troubletwisters series; Spirit Animals: Blood Ties; Have Sword, Will Travel and Let Sleeping Dragons Lie (with Sean Williams). He lives in a Sydney beach suburb with his wife and two children.