In the 1940s, the French artist Jean Dubuffet began collecting “works produced by artists unscathed by artistic culture,” as he put it in a 1949 text describing his term art brut (“unrefined art”). These artists—psychiatric patients, psychics, and untrained social recluses—work “from their own depths,” Dubuffet wrote, “and not from the conventions of classical or fashionable art.” Today, such creations are known as outsider art, expressions of subcultural, rural, or folk traditions that offer an alternative to establishment art. The 10th edition of the Outsider Art Fair Paris features 30 exhibitors from 24 cities representing 13 countries. While the pieces on view are united in their rejection of the artistic elite, it is the quality of unbridled creativity that makes the show radically diverse in its offerings. This is the inaugural edition led by Paris director, Sofia Lanusse. —Clementine Ford