sentences:  Zepeda is the editor for Sun Tracks, a series of books that focuses on the work of Native American artists and writers, published by the University of Arizona Press.Zepeda is a professor of linguistics at the University of Arizona and is well known for her efforts in the preservation of and the promotion of literacy in Tohono O'odham.She served as director of the American Indian Studies Program at the University of Arizona from 1986 to 1991.