Susana Martinez-Conde and Stephen Macknik are award-winning neuroscientists and professors at the State University of New York, Downstate Medical Center. They are best known for their studies on perception, illusions, and attentional misdirection in stage magic. They produce the annual Best Illusion of the Year Contest, now in its 13th edition, and are the authors of the international bestseller Sleights of Mind: What the Neuroscience of Magic Reveals About Our Everyday Deceptions. Their new book, Champions of Illusion: The Science Behind Mind-Boggling Images and Mystifying Brain Puzzles, comes out October 24th.