Collection of 31 first day and commemorative covers signed by authors, including: Arthur C. Clarke, Ray Bradbury, James A. Michener, Tom Wolfe, Arthur Miller, George R. R. Martin, Leon Uris, Alan Dean Foster, Ben Spock, Edward Albee, Stephen Longstreet, Herman Wouk, Robert Bloch, Dean Koontz, Sidney Sheldon, Jeff Archer, Robert Bloch and Janet Leigh, W. D. Snodgrass, Fannie Flagg, Khaled Hosseini, John Grisham and Robin Cook, William Peter Blatty, Stefan Lorant, Neil Simon, Norman Vincent Peale, Timothy Zahn, John Mantley, Daniel Cohen, Edith Pargeter, Spike Milligan, and Tim Rice. In overall fine condition.