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: Harold Waldwin Percival was a philosopher and writer, best known for Thinking and Destiny, in print since 1946. Between 1904 and 1917 he published The Word. In 1950 he founded The Word Foundation, Inc.