Woodrow Barfield, PhD, JD, LLM, has served as professor of engineering at the University of Washington, Seattle, Washington, where he received the National Science Foundation Presidential Young Investigator Award. Professor Barfield directed the Sensory Engineering Laboratory, where he was involved in research on sensors and augmented and virtual reality displays. He has served as a senior editor for Presence: Teleoperators and Virtual Environments and is an associate editor for Virtual Reality. He has more than 350 publications and presentations, including invited lectures and keynote talks, and holds two degrees in law.