In order to achieve these objectives in the limited period of time of the course, only the most important fields of research of Vision Science, such as perceptual organization, figure-ground segregation, perception of shape, color, space, depth and three-dimensionality, movement and meaning will be considered. In relation to these fields, the most salient phenomenon of major interest for undergraduate students of Science of Tourism will also be analysed in more detail. These phenomena will be described according to a theoretical perspective, which includes phenomenological data deriving from other fields such as neuro-biological and computational areas. Through these phenomena it is possible to demonstate how human vision, meant as a phenomenal system, organizes reality. At the same time, it is possible to say how the visual system, considered as a mental and neural structure, reacting to light encodes and develops visual information through a long chain of biological-computational processes.