Visual literacy is the ability to evaluate, apply, or create conceptual visual representations. Skills include the evaluation of advantages and disadvantages of visual representations, to improve shortcomings, to use them to create and communicate knowledge, or to devise new ways of representing insights. The didactic approach consists of rooting visualization in its application contexts, i.e. giving the necessary critical attitude, principles, tools and feedback to develop their own high-quality visualization formats for specific problems (problem-based learning). The commonalities of good visualization in diverse areas, and exploration of the specificities of visualization in the field of specialization (through real-life case studies).