This biography aims "to trace in detail Mark Twain's career as a writing man, passing over lightly or ignoring, his multifarious nonliterary doings.
Such nonliterary affairs as archaeology, space, education, psychiatry, travel and even car racing (in 1963 it commissioned an article, Speed and Women, by Stirling Moss) now .
Nowadays, the most successful editors are often nonliterary chaps with a well-developed knack for betting right on the question: What will the most readers buy?.