Engineer by day, writer by night. Winner of two Nebula Awards, a Locus Award and a British Science Fiction Association Award. Writer of Science Fiction, Fantasy and other less clearly defined stuff. Author of The House of Shattered Wings (out now from Gollancz, Roc), a dark fantasy set in a Paris devastated by a magical apocalypse, where Fallen angels mingle with alchemists, witches and Vietnamese ex-Immortals. Also author of the Xuya universe series, an alternate history future with a dominant Vietnamese galactic empire and biological artificial intelligences housed in spaceships.