Peter Kaiser, an emeritus professor at York University, created this website about visual perception to supplement curriculum. After reading the introduction describing how to best utilize the materials, students and educators can find twenty four chapters covering many topics including, physics of the visual stimulus, the basics of Fourier analysis, and spectral sensitivity. For each topic, the website provides numerous figures and diagrams supplemented by text. Users can find interesting illusions and other demonstrations in the Fun Things in Vision link. Everyone curious about the physics of perception will find helpful materials at this website.