Further references
- On the way our brain visualizes: Information Visualization by Ware, Colin. (2012) , 3rd Edition. Morgan Kaufmann
- http://www.datavizcatalogue.com for quite an exhaustive catalogue of data visualization techniques and how to employ them
- Interaction of Color, Joseph Alber, one of the greatest books on the theory of colour
- ggplot2: Elegant Graphics for Data Analysis, by Hadley Wickham, Springer-Verlag