Professor David Joyner

David Joyner is a professor of mathematics at the United States Naval Academy. He is the author of Adventures in Group Theory: Rubik's Cube, Merlin's Machine, and Other Mathematical Toys, also available from Johns Hopkins. Richard Kreminski is a professor and head of the mathematics department at Texas A & M University--Commerce. JoAnn Turisco is an associate professor of mathematics at the United States Naval Academy.