Looking and feeling. Have you ever felt these simple actions to be a mysterious process? This sense of mystery lies at the beginning of all visual science. Our eyes and brains can instantaneously resolve complex calculations and problems of reasoning. The reality of our world finds its beginnings in these visual mechanisms and in the mechanisms for perceiving the relationships between ourselves and our environment. Here we hope to provide a place where you can come to an intuitive understanding of such things through a variety of illusions.