Mary Robinette Kowal (née Harrison; born February 8, 1969) is an American author and puppeteer. Originally a puppeteer by primary trade after receiving a bachelor's degree in art education, she became art director for science fiction magazines and by 2010 was also authoring her first full-length published novels. The majority of her work is characterized by science fiction themes, such as interplanetary travel; a common element present in many of her novels is historical or alternate history fantasy, such as in her Glamourist Histories and Lady Astronaut books.