Maps have long fascinated viewers—both as beautiful works of art and as practical tools to navigate the world. But for collectors, the map trade can be a cutthroat business. In his book The Map Thief: The Gripping Story of an Esteemed Rare-Map Dealer Who Made Millions Stealing Priceless Maps, author Michael Blanding describes the life of E. Forbes Smiley, a respectable antiquarian map dealer who spent years doubling as a map thief—until he was finally arrested for slipping maps out of books in the Yale University library. A book signing follows the program.