The Visual Cognition Lab of the University of Illinois has created a number of videos that show the limits of perception, attention, and awareness. The videos come from Professor Daniel Simons’ experiments on visual awareness, and demonstrate how different viewers will see different things in seemingly simple actions. The videos include A Person Change Video, Changes Across Cuts in a Motion Picture, and A Subject in a Real-World Person Change Event . All require QuickTime or Java. A famous Simons experiment, the ‘basketball’ video, is available as a Java applet, from http://viscog.beckman.uiuc.edu/media/sciam.html. The videos, which cannot be downloaded, are also available for purchase on a DVD, Surprising Studies of Visual Awareness.