“Guerilla Girls: Art in Action” at ɫɫ Museum of Art. Posters, handbills, books and newsletters chronicle the actions of the longtime feminist art-activists. Runs through May 17. On Thursday, Feb. 5 at 7 p.m., the Guerilla Girls will be on hand for a performance and reception. 330 N. College Ave., Claremont, pomona.edu/museum.