The definition by Card et. al. of information visualization as “the use of computer-supported, interactive, visual representations of abstract data to amplify cognition (1999),” is the basis for many. But there are also parties involved from outside the academic fields in the popularization of information visualization, as Viégas and Wattenberg write. Tag clouds for example go against certain theoretical design principles but still seem to work. Lima praises the way “they observed how the last couple of years have witnessed the tipping point of a field that used to be locked away in its academic vault, far from the public eye. The recent outburst of interest for information visualization caused a huge number of people to join in, particularly from the design and art community (2009),” resulting in the development of a multiplicity of projects.