This sessions covers the recent history of data visualisation, that grew in Europe during the early modern period. It showcases several examples of how early forms of visualisation were used to make strategic decisions on warfare, public health and mortality. Thereafter, it uses a ‘visualisation of visualisations’ to outline and clarify what are the different forms of visualisation and what their purposes are. It describes how visualisations can be used to show, 1) comparisons, 2) composition, 3) distributions and 4) relationships between data points and datasets. At the end of the session, participants will be able to use various built- in charts and graphs for data visualisation tools in MS Excel, and participants will be able to create, format colors, legends to improve the readability of the charts