Donald D. Hoffman is Professor of Cognitive Sciences at the University of California, Irvine. He is the author of Visual Intelligence (Norton, 1998), as well as over one hundred scholarly articles on various aspects of human perception and cognition. He received a Distinguished Scientific Award of the American Psychological Association for early career research into visual perception; the Rustum Roy Award of the Chopra Foundation; and the Troland Research Award of the US National Academy of Sciences. His 2015 TED Talk 'Do we see reality as it is?' has had over 2.9 million views.