Bob Thoresen is well known as a city planner, philanthropist, and community leader on the Seacoast. In October, NHAA presents a retrospective of his work, “Thor Art: A Retrospective Look” at the Robert Lincoln Levy Gallery, 136 State St., Portsmouth. The exhibition and accompanying book bring together work spanning Thoresen’s career as an artist, including mixed-media works, paintings, sculpture, and early drawings. On view October 1st-29th.