I just started reading a great new book put out by the fine people at McSweeney's entitled COMEDY BY THE NUMBERS. It's a VERY tongue-in-cheek book, not intended for children, that is not only an excellent introduction for those just starting out but also very entertaining for those seasoned comedy performers and fans.
That is if those performers and fans are in tune with the irony-drenched, satiric "new" humor of MR. SHOW, Cartoon Network's ADULT SWIM, RENO 911, Conan O' Brien, THE DAILY SHOW, John Hodgeman, Stephen Colbert, David Sedaris and the like. Those that are not would probably prefer to learn their comedy somewhere else ; )