I offer for groups of three or six, as well as private lessons.  The group class is for people who have never touched glass.  It is one night a week for five weeks.  We usually have three people so classes are three and a half hours with half an hour devoted to a demo and then one hour each for blowing.  Much of the learning takes place through watching others.  The cost is $375.  You can then follow this up with private lessons for $60 and hour.