Get a copy of the CD of "200 mph" by Bill Cosby. It's a very old piece of work but it is available through Amazon at a very reasonable price. I know because I just purchased two copies to give as Father's Day gifts.
If anyone out there aspires to a comedy career, this particular CD is a "must have" in my opinion. It is a clear and hilarious demonstration of how the brilliant Dr. Cosby seamlessly sustains and builds a comic piece of work that lasts 20 minutes.
In my view, Bill Cosby is easily the heir to Mark Twain in his skill and brilliance as a storyteller!
I'm a big fan!