Molly Schwartzburg, Philip Hofer Curator of Printing and Graphic Arts at Houghton Library, explores an unusual object in Harvard's collection: a "blook," a book-shaped object made from wood of the Washington Elm. The elm stood on Cambridge Common, just steps from Harvard Yard, and is believed to be the tree under which George Washington took command of the Continental Army on July 3, 1775. When the elm died in 1923, pieces were distributed across the country and around the world as symbolic remnants of that founding moment. The Washington Elm is featured in War of Words, an exhibition opening at Houghton Library on May 18 exploring the printed materials that shaped the American Revolution. The exhibition is free and open to the public. Learn more at library.harvard.edu/exhibits/war-words.