Without sounding too "self serving," I want to suggest the edition of the autobiography that I edited in 1990 under the title "Mark Twain's Own Autobiography" (Univ. of Wisconsin Press). There are genuine problems with Paine's and DeVoto's and Neider's editions. Most importantly is that the three ignore Twain's own intentions for the autobiography. My edition -- as well as the version that is part of the Oxford Mark Twain series -- is taken from the 25 installments that Twain chose and edited for the North American Review for 1906 and 1907. I make a case for this version in the introduction that I wrote for Wisconsin and in the afterword that I wrote for the Oxford Twain. There are, in fact, over 2,500 pages of autobiography on file at Berkeley. And given the range of editorial challenges in dealing with the manuscripts and the dire state of humanities funding generally, I suspect that the Mark Twain Project will not get to the autobiography while any of us are alive. What we might, then, explore is the version of the life story that Twain left to us. It's VERY different from Paine and DeVoto and Neider, most importantly, in the image of family and emotional ties that Twain had. Anyway. You might take a look.