At the end of his long life, Samuel Clemens felt driven to write a truthful account of what he regarded as the flaws in his character and the errors of his ways. His attempt to tell the unvarnished truth about himself is preserved in nearly 250 autobiographical dictations. In order to encourage complete veracity, he decided from the outset that these would be published only posthumously.Nevertheless, Clemens's autobiography is singularly unrevealing...