This adventure concerns teh problem of traversing an m by n directed grid embedded on a torus so that each vertex is visited exactly once before returning to the starting position. You'll see how an application to computer graphics became the image on the 2003 Mathmatics Awaremess Month poster.
Joseph A. Gallian is a Distinguished Professor of Teaching and Professor of Mathematics at the University of Minnesota, Duluth. Winner of the Haimo award of the Mathematical Association of America (MAA) for distinguished teaching, he has also received the MAA's Allendoerfer and Evans Awards for Expository Writing. In addition he has served as a Polya Lecturer, the Second Vice President, and Co-Director of Project NExT. For more than 20 years he has directed an NSF sponsored Research Experience for Undergraduates program. Among the courses he teaches: one on the Beatles and one on Math and Sports.