I’m sure when you think of data vis your first thought is just charts and graphs. It doesn’t have to be though! Illustrations and graphics can also be a good way to communicate your data. Take the London Underground map for example. Colours and labels are used to differentiate the different tube lines and unnecessary detail, such as geographical accuracy, is avoided to ensure simplicity.
Throughout all of this, accessibility is a really important factor to incorporate. Using colour in data visualisation is a great way to portray an important pattern or trend, but it’s important to be mindful of using colour combinations that people with colour-blindness can interpret and use patterns or labels to distinguish different categories alongside this.