Ten years of extensive research in computer graphics has produced a collection of basic algorithms and procedures whose utility spans many disciplines; they can be regarded as tools. These tools are described in terms of their fundamental aspects, implementations, applications, and availability. Programs which are discussed include basic data plotting, curve smoothing, contour line production, and manipulation of general 3-dimensional objects. As an aid to potential users of these tools, particular attention is given to discussing their availability and, where applicable, their cost.