Twain never compiled these writings and dictations into a publishable form in his lifetime.
Despite indications from Twain that he did not want his autobiography to be published for a century, he serialised some Chapters from My Autobiography during his lifetime and various compilations were published during the 20th century.
In 1959 Charles Neider rejected both Paine's in-order-of-creation and De Voto's arranged-by-topic approaches and rearranged material to match the chronology of a standard autobiography.
The Mark Twain Project of The Bancroft Library undertook to produce a complete autobiography of Twain, based upon material within their collection.
Here, you'll find 12 tips he offered other writers in his lifetime that still hold true today.
For example, in Year 1 that useless letter "c" would be dropped to be replased either by "k" or "s", and likewise "x" would no longer be part of the alphabet.
However it wasn't until 2010, in the 100th anniversary year of Twain's death, that the first volume of a comprehensive collection, compiled and edited by The Mark Twain Project of The Bancroft Library at University of California, Berkeley, was published.
Twain first started to compose an autobiography in 1870, but proceeded fitfully, abandoning the work and returning to it as the mood took him, amassing around 30-40 of these "false starts" over the next 35 years.
It was compiled by personal friend and literary executor Albert Bigelow Paine, who at the time had exclusive access to Twain's papers.
Editor and historian Bernard De Voto succeeded Paine as literary executor for the Clemens estate, and used his access to the material to produce four book collections of Autobiography material: Mark Twain in Eruption (1940), The Portable Mark Twain (1946), Mark Twain at Work (1952), and Letters from the Earth (1962).