Their contributions generally go unheralded, but a clever theater poster can do much more than impart information: It can set tone; it can bemuse and intrigue; it can make a viewer eager to see a play. An evocative theater poster is almost like the first review. No one in town evokes a play's style more cleverly and insightfully than does Marjorie Williamson. To see a play through Williamson's penetrating eyes can be a delightful revelation. She has a gift for conveying a play's essence even before the production has gone into rehearsal. Our all-time favorite Williamson design might have been the one she did for This Wonderful Life in 2010, featuring the cast of Frank Capra's It's a Wonderful Life inside a snow globe. That said, her poster for this past summer's Act, Inc. dramatization of Graham Greene's novel Travels with My Aunt rivaled that tour de force, depicting a monocled Brit being carried along like a handbag by a striding female figure, transforming an upcoming event into a two-dimensional world of expectation and promise.