Summary: This week, conversation with two writers who made the Book Review's Top Ten Best Books of 2010: Jennifer Homans, author of "Apollo's Angels: A History of Ballet", and Siddhartha Mukherjee, who wrote "Emperor of All Maladies: A Biography of Cancer"; Julie Bosman has notes from the field; and Jennifer Schuessler has best-seller news. Sam Tanenhaus is the host.
