In this chapter we covered some principles of data visualisation and good map design, specifically how to implement some of these using ggplot2 library in R. We talked about symbols, colour, text, and adding context. ggplot2 provides an incredibly flexible framework, and through the use of layers you can achieve a very beautiful and meaningful map output. We could for example consider adding topography, such as rivers, lakes, and mountains to our maps, and it would be only a case of adding another layer. To get more familiar with this, we recommend [153] and [154].
For general readings on cartography, the work of Kenneth Field provides thorough and engaging guidance (e.g., [145] or [127]). For data visualisation, while [4] is a classic text, those looking for practical instruction may wish to turn to [148] or [149] for more guidance.
