Rudolf Arnheim is Professor Emeritus of the Psychology of Art at Harvard University. His books include Film as Art (California, 1957), Visual Thinking (1969), The Dynamics of Architectural Form (California, 1977), The Split and the Structure: Twenty-eight Essays (California, 1996).

"In The Ego and the Id Freud argued that a cogent thought process, to say nothing of conscious intellectual work, could not exist amidst the unruliness of visual experience. Over the last half century in a sequence of landmark books, Rudolf Arnheim has not only shown us how wrong that is, he has parsed the grammar of form with uncanny acuity and taught us how to read it." - Jonathan Fineburg, author of Art since 1940: Strategies of Being"