Visual discovery through art -- Moment and movement in art -- Ritualized gesture and expression in art -- Action and expression in Western art -- The mask and the face : the perception of physiognomic likeness in life and in art -- The visual image : its place in communication -- 'The sky is the limit' : the vault of heaven and pictorial vision -- Mirror and map : theories of pictorial representation -- Experiment and experience in the arts -- Standards of truth : the arrested image and the moving eye -- Image and code : scope and limits of conventionalism in pictorial representation.