Visual literacy is a new concept that enriches the one better known as multimodal media literacy. At a time when Internet overwhelms various public images of all kinds, it is appropriate to consider how school can contribute to visual literacy’s development, making the user both active and critical. This article examines the nature of images and their reading in order to better define this new visual literacy, which owes much, among others, to the multiliteracies’ current. It also discusses the relevance of visual literacy at school, and analyzes some examples of inspiring projects in the field.