Mark Twain's witticisms are incalculable, and lifetime popularity is described: it is he who is called the first blogger and the first literary star. In Russia, Twain is known primarily as a humorist and author of magnificent children's books, but this does not exhaust his gift: he wrote romance novels, detective stories, science fiction and theological treatises. He invented braces, stilettos, calendars, cots; twice became a millionaire and broke; he was adored by kings and revolutionaries, atheists and priests; for his sake, traffic rules were canceled. Born with the arrival of Halley's comet and leaving the Earth with it, Mark Twain does not cease to excite the public: he is the only writer who manages to publish new books "from the other world." The author tells about these and even more amazing episodes of the biography of the American classic.