A profound collection of Presidential books signed by the former holders of the Oval Office themselves. Included in this lot are biographies and memoirs autographed by Calvin Coolidge, Herbert Hoover, Harry S. Truman, Dwight D. Eisenhower, Lyndon Johnson, Richard Nixon, Gerald Ford, Jimmy Carter, Ronald Reagan, George H.W. Bush and Bill Clinton. The books average EX-MT to NRMT while the signatures average a "9" out of a possible 10.