Book excerpt: Oxygen-deprived for two hours at birth, Christopher Nolan lived to write, at age twenty-one, the autobiography of his childhood, told as the story of Joseph Meehan. He wrote the book, using a "unicorn stick" attached to his head, letter by painful letter. The result is astonishingly lyrical, filled with powerful description, touching moments of triumph and humiliation, and, above all, disarming wit. It is, in the words of London's Daily Express, "a book of sheer wonder".