Data visualisation is also called information design. It's about presenting otherwise complex or boring information and presenting it in a visually engaging & meaningful way. This could mean making a graph, diagram or infographic.
Different types of Data Visualisations. (Image: Michelle Borkin, Harvard SEAS)
Data visualisations come in all forms and sizes and depending on your audience and how creative you want to get, there are many options. Below are links to websites covering the various types of data visualisations.