One of the important developments of the mapping of cultural transferance and migration. Covarrubias shows the distribution of key culture icons throughout a wide multiple region network. The gradual progression of style is there, the shift of symbol meaning through time and across geography is there. All in a readable, beautifully illustrated volume. One of the works that was so hard for the "only Western Europe has ever expanded across the world" school of archeology to ignore or refute.