The article discusses how to design displays to help people understand complex information better. The researchers compared two types of displays in a study. They found that one type of display helped people remember important information better, while the other type was faster for looking at details. The results show that displays can be designed to show both important relationships and specific details effectively. To show important relationships, the display should highlight key connections in the data. To show specific details, the display should use techniques like emphasizing scale, separating information spatially, and using different colors.