This series publishes Mark Twain's private papers–his letters, notebooks, unpublished literary works, and autobiography. All volumes in the series are fully annotated scholarly editions which have been inspected and approved by the MLA's Committee on Scholarly Editions.
Everything in the Mark Twain Papers not already included in a critical edition has been published in the microfilm edition and is under copyright of the Regents of the University of California.
The set of three microfilm editions may be purchased for $50,000.
For more information, visit the Mark Twain Project's Publications page, or e-mail mtp@library.berkeley.edu.