The War for Late Night: When Leno Went Early and Television Went Crazy is a 2010 non-fiction book written by "The New York Times" media reporter Bill Carter. It chronicles the 2010 conflict surrounding the American late-night talk show "The Tonight Show" involving Conan O'Brien and Jay Leno. It is a sequel to Carter's 1994 book "The Late Shift", which detailed the struggle for the hosting spot on "The Tonight Show" between David Letterman and Jay Leno in the early 1990s following the retirement of Johnny Carson. It was first published on November 4, 2010, by Viking Press.