So if the words data visualisation don’t make your eyes roll back in your head Tableau have written an article based on tracking eye movements when looking at dashboards to give some ideas on how to improve your visuals here. My favourite take-aways though are:

• Big numbers draw attention, rather than just putting all of your numbers in a table with a total row why not put them up the top and change the font size.
• It might look tidy to use the same graph types but people get repetition fatigue and you’re better off mixing up your visuals.
• Use contrast, having a colour pallet that’s easy on the eye might be important but if all of your colours are similar it can be easy to glaze over and you’re better off using contrasting or bright colours to draw attention.