Rigging Seminars will conduct three classes in 2005. They will be in Las Vegas February 8-11 and May 2-5, and in Chicago June 3-6. Each class covers the principles and operation of both stage rigging and arena-style rigging. There is a full day of hands-on training. Rigging Seminars are taught by Harry Donovan and Jay O. Glerum, both working professionals with more than 40 years experience in show business.