The first one - and by far the best to date IMO - covered the crazy first 18 or so years of his life. The second deals with his time in Cambridge and his early acting career, ending with his 30th birthday. The third one picks up from there and presumably ends with or maybe a bit after the Cell Mates debacle. A tad presumptuous/pretentious to have more than three autobiographies out there, but the whit and charm of the first make the enterprise worthwhile.