Smith, general staff editor at the National Enquirer, confessed in an undated letter that he seldom leaves the office and thus has no need for a business card.

WSJ: Smitten by Smiths: Bob Ziegler

In another undated letter from bin Laden to his chief off staff al Qaeda's leader gave a set of detailed instructions about how best to handle his family members living in Iran once they were released.

CNN: Strange bedfellows -- Iran and al Qaeda

Also included is a typed, undated draft letter from John Lennon to Linda and Paul McCartney that reflects the deep animosity between the two Beatles around the time of the foursome's formal 1971 breakup.

WSJ: Monroe, Eisenhower letters to be auctioned