Erik Davis is a San Francisco-based writer, performer, and teacher. He is the author of The Visionary State: A Journey through California’s Spiritual Landscape, and TechGnosis: Myth, Magic, and Mysticism in the Age of Information, which has become a cult classic of visionary media studies. He also wrote a short book of "occulture criticism" on Led Zeppelin's fourth album. Davis has lectured at universities and festivals around the world, has contributed to scores of magazines and books, was a contributing writer for Wired and the Village Voice for many years, and has taught at UC Berkeley, UC Davis, Pacifica, Maybe Logic Academy, and the California Institute of Integral Studies. He also wrote the libretto for How to Survive the Apocalypse, a Burning Man-inspired rock opera.