John F. Hughes (Ph.D., University of California, Berkeley) is an Assistant Professor of Computer Science at Brown University, where he codirects the computer graphics group with Andries van Dam. His research interests are in applications of mathematics to computer graphics, scientific visualization, mathematical shape description, mathematical fundamentals of computer graphics, and low-dimensional topology and geometry. He is a member of the AMS, IEEE, and ACM SIGGRAPH. His recent papers have appeared in Computer Graphics, and in Visualization Conference Proceedings. He also has a long-standing interest in the use of computer graphics in mathematics education.