So far only one theory is known. Free space increases the costs of printing and production, especially in print. One reason that could speak in favor of reducing the design is that simple forms and few texts are easier and faster to receive. In addition, people tend to avoid long and cumbersome information.
Literature research, qualitative surveys and interviews should serve as the primary method. At first, basic theories and explanatory approaches should be found out with the help of literature. Then, based on the knowledge gained, it should be checked whether there is statistical evidence of the added value of “omitting”. In addition, authors, designers and scientists are to be questioned in qualitative analyzes.