Doug Ensley is a full professor at Shippenshburg University with a Ph.D. from Carnegie Mellon.?He is an active participant in national and regional committees determining the future of the discrete math curriculum, and he regularly speaks at Joint Math and MathFest. Winston Crawley is a full professor and chair of the math department at Shippensburg University.?He has a Ph.D. from University of Tennessee-Knoxville.?Crawley developed the undergraduate computer science curriculum at Shippensburg.