Fractals: Form, Chance, and Dimension

'''Mandelbrot, Benoít. Fractals: Form, Chance, and Dimension.''' San Francisco: Freeman, 1977.

Cited by Douglas Hofstadter as "a picture book of sophisticated contemporary research ideas in mathematics," in the Bibliography to Gödel, Escher, Bach, q.v.. Mendelbrot and his theory of "roughness" — and more specifically fractals and "the Mandelbrot set" — became increasingly important as the 20th c. moved into the 21at.