David Carrasco 
Quetzalcoatl and the Irony of Empire [PDF ebook] 
Myths and Prophecies in the Aztec Tradition, Revised Edition

"Like J. Eric Thompson, Carrasco has applied an informed imagination to identify some of the ways that ideas could lie behind material form."- American Anthropologist"A must for both professional and serious non-professional students in Mesoamerica. Those who are interested in complex society and urbanism in general, as well as students of comparative religion, will find it stimulating. Most importantly, for anyone interested in the history of ideas, the book illuminates the tremendously powerful impact and role of a complex deity/mythico-historical figure in shaping one of the world’s great pristine civilizations."- Queen’s Quarterly