Compilations
The Early Tales and Sketches
- Composition Date: 1851–65
- Description: Edited texts and editorial matter from the Mark Twain Project edition's Early Tales and Sketches, Volumes 1 and 2
Autobiography of Mark Twain
- Composition Date: 1870–1909
- Description: Edited texts of The Autobiography of Mark Twain with editorial matter and related manuscripts from the three-volume Mark Twain Project edition
The Unpublished Manuscripts
- Composition Date: 1870–1909
- Description: Edited texts of the unpublished, incomplete manuscripts of Mark Twain previously published in Which Was the Dream?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)
What Is Man? and Other Philosophical Writings
- Composition Date: 1866–1910
- Description: Edited texts of What Is Man?, Christian Science, Letters from the Earth, and other previously published and unpublished writings