Mark Twain's Letters, Volume 2: 1867-1868 by Mark Twain (Author), Harriet E. Smith (Editor), Richard Bucci (Editor), Lin Salamo (Editor) February 1990 Hardcover $125.00, £105.00
Mark Twain's Letters, Volume 1: 1853-1866 by Mark Twain (Author), Edgar Marquess Branch (Editor), Michael Barry Frank (Editor), Kenneth M. Sanderson (Editor) March 1988 Hardcover $125.00, £105.00
Mark Twain's Correspondence with Henry Huttleston Rogers, 1893-1909 by Mark Twain (Author), Lewis Leary (Editor) April 1969 Hardcover $84.00, £70.00|eBook $84.00, £70.00
