Das Perpetuum-Mobile : aktive Kunst / Otto Freundlich.
Das Perpetuum-Mobile: aktive Kunst is a 1918 art portfolio by the German artist Otto Freundlich, published in Berlin-Wilmersdorf by Franz Pfemfert's Die Aktion and aimed at readers of avant-garde art journals. Its pictures are sparse black ink line drawings of figures in motion and fragmented faces with hatched shading on cream paper, a model for designers wanting gestural contour line and expressive, energetic economy.






