He just created a great new piece for Kokomo Opalescent Glass. It's the cover story in the current issue of Glass Craftsman Magazine. If you have to opportunity to learn from him, I highly recommend it. I expect he'll be giving classes again during the Art Glass Suppliers Association show next year in Orlando, June 21-24. Check out Vicki Payne's Glass Extravaganza for public classes.
Retailers carry a wide variety of pattern books too.
Also there is a magazine available, Glass Patterns Quarterly, that focuses on patterns. Two other periodicals that are available are Glass Craftsman Magazine and Glass Art Magazine. Check the larger booksellers in your area for those. They have great articles, resources for classes and other things of interest. Glass artists have a reputation for being very secretive about how they do their craft.