Garth's books include the award-winning young adult fantasy novels Sabriel, Lirael, Abhorsen and Clariel; 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; and the Troubletwisters series and Spirit Animals: Blood Ties (co-written with Sean Williams). More than five million copies of his 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 forty languages. He lives in a Sydney beach suburb with his wife and two children.