The 2003 critical edition, including the updated text and editorial materials

The complete edited text with annotations, apparatus, appendixes, and other editorial matter

The 1993 text, notes, and apparatus of Mark Twain’s book about the American west and Hawaiian Islands

The complete edited text with annotations

The complete edited text with annotations, apparatus, appendixes, and other editorial matter

Edited texts of The Autobiography of Mark Twain with editorial matter and related manuscripts from the three-volume Mark Twain Project edition

Edited texts and editorial matter from the Mark Twain Project edition's Early Tales and Sketches, Volumes 1 and 2

Edited texts of the unpublished, incomplete manuscripts of Mark Twain previously published in Which Was the Dream? (1966), Hannibal, Huck and Tom (1969), Mysterious Stranger Manuscripts (1969), Fables of Man (1972), and Huck Finn and Tom Sawyer among the Indians (1989); with selections from other edited compilations, such as What Is Man? (1973)