Constructivism: 1 2 3
Another major artist influenced heavily by Malevich and, to a
lesser extent, Tatlin was El Lissitsky (1890-1941). Lissitsky
was originally trained as an engineer and architect. His series
of "prouns" (this one is labeled #30), experiment with
Malevich-like forms which are drawn with all the precision an
architect could muster. They hold a delicate and tense balance
between seeming suspended in midair and about to collapse.
The Getty Museum is currently hosting an excellent Lissitsky
on-line exhibit, Monuments
of the Future.