This book provides a detailed up-to-date account of research on visual perception. In part 1 evidence from neuroimaging and neuropsychology has been integrated into a critical account of the 'two pathways' theory of visual cortex. Part 2 gives particular attention to recent advances in integrating psychophysical, physiological and computational approaches to problems. Part 3 draws on evidence from both animal and human behaviour to cover optic flow and locomotion, the timing of actions, and perception of the social world.