Yes! Some commodities have recurring seasonal patterns. "Particularly the grains and softs." There is a really good book on seasonal trading & spread strategies with grains, and softs. Here is the link
http://www.amazon.com/exec/obidos/tg...books&n=507846
I'm not sure about energy seasonals. Im sure there has to be a book out there covering energy seasonals.
Good luck & happy trading
