In the years from 1970 through 1977, the Topology Films Project, directed by Nelson Max and supported by the National Science Foundation, produced several computer animated films on topology, a branch of mathematics. Three of the longer films and three of the shorter films are included in this collection. The original printing negatives for these films have been lost, and the videos here were produces from somewhat scratched 16mm film prints, with uneven sound. The printing negative for the fourth longer film, "Turning a Sphere Inside Out", was resurrected, and a video is available for sale...