With titles such as “To a Young Wretch,” “One Step Backward Taken,” “Closed for Good,” and “On Making Certain Anything Has Happened,” the Christmas cards* sent out by Robert Frost from the 1930s to the 1960s aren’t exactly traditional holiday greetings—and that’s their charm (well, that and the marvelous art direction). Poets House’s free exhibit is up through January 15, and it’s absolutely worth checking out—if only to remind yourself on a 63-degree December day that Christmas is, in fact, looming around the corner. 10 River Terrace (at Murray); poetshouse.org.

* They’re actually chapbooks.