Burlington will host an exhibit of graphic art prints depicting work scenes as part of the CU This Summer cultural outreach program from the University of Colorado at Boulder. The exhibit, “By the Sweat of Your Brow: Images of Work,” will be shown from May 24 through Sept. 1 in Old Town Museum, the local sponsor, at 420 S. 14th St. Admission is $6 for adults, $5 for seniors, $4 for youngsters ages 12 to 18 and $2 for ages three through 11.