This dissertation gives new results in regard to interpretations and explanations for the term Gestaltung on the constructivist Friedrich Vordemberge-Gildewart. The first part shows VG as a theoretican and is based on his theoretical writings of the twenties; the second part deals with his works as paractical artist. The wiritings shows his postulates on art and artist concerning formal-aesthetic, gestalt-psychological and social-utopian aspects. The formation-principle is described as an all-purpose method arranged in several layers, based on working processes in building elements, series and transforming. With the union of art and living, VG demanded a new-organization of the environment, so that all branches of his work has been of equal value, similar to the Bauhaus and the Dutch Stijl-group. The second part shows the practical realization of his theoretical principal in free and applied art: free constructions, architecture, design of furniture and typography are compared and analyzed.This work offers a new start in the correlation of Gestalt-psychology and art. For the first time, it will be questioned, if laws and qualities of Gestalten can be applied on constructivist art. The results are shown on actual examples. New connections were found in case of abstract film and the performance of series of movements in absolute art.These interdisciplinary dissertations not only joins explorations on history of art, theory of art and psychology, but delivers a wide and thoroughly view inside the different sections of free and applied art of the twenties.