The papers in this special issue come from a 1990 workshop in San Diego on rendering three-dimensional scientific data. Peter Shirley and Allan Tuchman made the cover, a simulation of binary star formation rendered two ways, ray traced and as projected tetrahedra, for their paper inside. Another paper is co-written by Nelson Max, whose work, including the moving-water animation Carla’s Island, appeared in SIGGRAPH art shows from 1981 to 1987. In 1998 Prix Ars Electronica gave an honorary mention to his Homage to Hilbert, which uses volume rendering.