The Samuel Langhorne Clemens Collection provides insight into the life and career of Clemens, American author and lecturer also known by his pseudonym Mark Twain. The collection is comprised of correspondence, writings, contracts, scrapbooks, clippings, and printed material. The collection contains drafts, research notes, printed versions, and contracts, which document Clemens' creative process and writing career. Autograph manuscripts can be found in the collection for The Gilded Age, My Debut as a Literary Person, Clemens' translation of Der Struwwelpeter into English, and A Tramp Abroad. Very few of Clemens' autograph manuscripts represent the entirety of a work; due to his popularity among collectors many of his manuscripts were divided and given as gifts or sold separately. Correspondence with authors and publishers, including the American Publishing Company, Elisha Bliss, Richard Watson Gilder, Annie Trumbull Slosson, and Joseph Hopkins Twichell, also shed light into Clemens' professional life. Correspondence of Mark Twain collectors Willard S. Morse and Walter Francis Frear are included in the collection.