Belles Lettres is the St. Mary's arts and literature magazine which is edited by Upper School students. It features creative writing and artwork by students from Lower School, Middle School, and Upper School. In addition to publishing a magazine, Belles Lettres also hosts creative workshops and events, such as the annual Belles Lettres Coffeehouse. Belles Lettres is also responsible for recognizing the annual Mays Writing Contest winners.