We regularly consult and construct visual displays that are intended to communicate important information. The power of these displays and the instructional messages we attempt to comprehend when using them emerge from the information included in the display and by their spatial arrangement. In this article, we identify common types of visual displays and the kinds of inferences that each type of display is designed to promote. In particular, we outline different types of semantic and pictorial displays. Then, we describe four main ways in which visual displays can affect cognitive processing including selection, organization, integration, and processing efficiency and how semantic and pictorial displays support these types of processing. We conclude with seven recommendations for designing visual displays and possible directions for future research.