on Feathered Serpent and Smoking Mirror: The Gods and Cultures of Ancient Mexico by C. A. Burland, Werner Forman; A Guide to Ancient Mexican Ruins by C. Bruce Hunter; The Zapotecs: Princes, Priests and Peasants by Joseph W. Whitecotton; & An Introduction to the Study of the Maya Hieroglyphs by Sylvanus Griswold Morley, J. Eric S. Thompson