Susanna Mary Clarke (born 1 November 1959) is an English author best known for her debut novel Jonathan Strange & Mr Norrell (2004), a Hugo Award-winning alternative history. Clarke began Jonathan Strange in 1993 and worked on it during her spare time. For the next decade, she published short stories from the Strange universe, but it was not until 2003 that Bloomsbury bought her manuscript and began work on its publication. The novel became a best-seller. Clarke's second novel, Piranesi, was published in September 2020.