Undergraduate and graduate students will learn about best practises in data visualisation in the course Exploring and Explaining with Data. One of the earliest books on data visualisation written for undergraduate courses is this one. The book includes information on good design, choosing the right chart style, using colour effectively, exploring data visually, and using data to visually express ideas and findings in an engaging way. The "why" and "how" of data visualisation are both explained in the book. That is, the book uses engaging examples to clearly explain the fundamental ideas behind data visualisation.