Flatterland: Like Flat-land, Only More So , IanStewart , Perseus, Cambridge, Mass., 2002 [2001, reissued]. $14.00 paper (301 pp.). ISBN 0-7382-0675-X

Leonard Parker, a professor of physics at the University of Wisconsin–Milwaukee, does research in gravitational physics. His current work is on the relationship of quantized fields in curved space-time to the recently observed acceleration of the expansion of the universe.