Mary Jo Salter's sparkling new collection, Open Shutters, leads us into a world where things are often not what they seem. In the first poem, "Trompe l'Oeil," the shadow-casting shutters on Genoese houses are made of paint only, an "open lie." And yet "Who needs to be correct / more often than once a day? / Who needs real shadow more than play?" Open Shutters also calls to mind the lens of a camera--in the villanelle "School...