Dr David Luke is Associate Professor of Psychology at the University of Greenwich, UK, where he has been teaching an undergraduate course on the Psychology of Exceptional Human Experience since 2009, and he is also Honorary Senior Lecturer at the Centre for Psychedelic Research, Imperial College London, and Lecturer on the MSc Consciousness, Spirituality and Transpersonal Psychology for Alef Trust and Liverpool John Moores University. His research focuses on transpersonal experiences, anomalous phenomena and altered states of consciousness, especially via psychedelics, having published more than 100 academic papers in this area, including thirteen books, such as Otherworlds: Psychedelics and Exceptional Human Experience (2nd ed., 2019). When he is not running clinical drug trials with LSD, conducting DMT field experiments or observing apparent weather control with Mexican shamans he directs the Ecology, Cosmos and Consciousness salon at the Institute of Ecotechnics, London, and is a cofounder and director of Breaking Convention: International Conference on Psychedelic Consciousness. He has given over 400 invited public lectures and conference presentations; won teaching, research and writing awards; organised numerous festivals, conferences, symposia, seminars, retreats, expeditions, pagan cabarets and pilgrimages; and has studied techniques of consciousness alteration from South America to India, from the perspective of scientists, shamans and Shivaites. He lives life on the edge, of Sussex.