In order to enhance the understanding of visual literacy, one of its constituents, visual learning (VL), is examined in terms of underlying assumptions, hypothesized behaviors, and implications of both assumptions and behaviors. Assumptions are: (1) VL encompasses all changes in behavior arising from the individual's responses to visual stimulation, (2) VL is dependent on the maturation level and extent of prior learning experiences, (3) VL develops in an invariant sequence of stages, and (4) VL is most likely to result from active participation by the learner. (Author/STS)