Jeffrey R. Weeks is a freelance mathematician in Canton, New York. A MacArthur Fellow and the author of numerous scholarly papers on geometry, topology, and cosmology, he splits his time between scientific research with cosmologists hoping to use satellite data to determine the shape of the universe and the development of interactive 3D software and other materials that bring the modern concept of space to middle school, high school, and college students. Dr. Weeks received the A.B. degree (1978) in mathematics from Dartmouth College, Hanover, New Hampshire, and the M.A. (1980) and Ph.D. (1985) degrees in mathematics from Princeton University, Princeton, New JerseyJeffrey R. Weeks is the author of 'The Shape of Space' with ISBN 9780824707095 and ISBN 0824707095.