Derek C. Schuurman (Ph.D., McMaster University) is associate professor of computer science and chair of the mathematics/physics/computer science department at Redeemer University College, Ancaster, Ontario. Coauthor of PSpice Simulation of Power Electronics Circuits (with R. S. Ramshaw, 1997), Schuurman is also an active researcher and speaker in the areas of robotics and computer vision as well as faith and technology issues.