In terms of application, Bertin’s ground-building theory on graphics presentation can always frame our low-level thinking. For example, when I come to the point of thinking how can present this type of data under these very constraints, I will recall Bertin’s visual variables. Another possible aspect of application is reviewing your design and visualization: did I miss something? Is it in conflict with Bertin’s theory? As Bertin’s work happend in 1960’s and was based on nothing like computer, some of his theory turns out to be fairly fundamental and concentrated. For example, we might not notice the ideas of IMPLANTATION and IMPOSITION in our work. However, Bertin forced us to think about our visualization in this way. The best part of this is that it helps you understand your visualization better.