Madeleine Sophie Townley, known by her pen name Sophie Kinsella, is an English author. She gained fame with her best-selling Shopaholic series, the first two novels of which, The Secret Dreamworld of a Shopaholic and Shopaholic Abroad, were adapted into the film Confessions of a Shopaholic in 2009.

Her books have sold over 40 million copies in more than 60 countries and have been translated into over 40 languages. In 2024, her novel What Does It Feel Like? was selected as one of The New York Times' 100 Notable Books of the Year and was also listed as one of the five best of the year by The Guardian.