Harvard Book Store, the Harvard University Division of Science, and the Harvard Library welcome Neal Stephenson—#1 New York Times bestselling author of Polostan and Cryptonomicon—for a discussion of his highly anticipated new book, D: Heavy Water, the second installment in his monumental Bomb Light series-a gripping tale set on the eve of World War II, as nations race to find and control an elusive substance critical to building atomic weapons.