Two important characteristics of maps should be noticed. A map is not the territory it represents, but, if correct, it has a similar structure to the territory, which accounts for its usefulness.
Bio: Patrick Hart "Pat" Cash is a retired Australian professional tennis player. He reached a career-high ATP singles ranking of world No. 4 in May 1988 and a career-high ATP doubles ranking of world No. 6 in August 1984.
