Chris Pellettieri is an artist in residence at the Cathedral of St John the Divine where he was an apprentice. In the four hour classes he teaches each spring, he introduces participants to the tools and techniques of shaping stone that have been handed down since ancient times, and he assists them in creating a relief sculpture in limestone. There will be at least four dates to choose from (on Saturdays from 12:30 until 5:00) the dates are not definite yet.