Diana is world expert of the Florentin Codex, the most important enciclopedia of Aztec Culture. She also has a unique understaning of the deeper cosmology of Meso American cultures, and has inmerse in the understanding of color as a symbolic messenger and a vehicle for “narrative text”.

Her professional career has focused on the study of pictorial techniques and modes of representation both for Mesoamerica as well and sixteenth-century indigenous artist.

She is the director of the Art of the Ancient Americas program at the Los Angeles County Museum of Art (LACMA), located in Los Angeles, United States and former director of the National Museum of Anthropology.