Early Rock Art of the American West: The Geometric Enigma

2018  Seattle: University of Washington Press.

L’infanzia dell’Estetica. L’origine Evolutiva delle Pratiche Artistiche

2015  Milan: Mimesis.

Art and Intimacy: How the Arts Began

2000  Seattle: University of Washington Press.
Paperback edition June 2012

Homo Aestheticus:
Where Art Comes From and Why

1992  New York: Free Press.

What Is Art For?

1988  Seattle: University of Washington Press.