In 1942 Josef Albers embarked on a series of zinc plate lithographs entitled Graphic Tectonics, a title that references both the solidity of geological matter and movement. While he is best known for his color studies, much of Albers non-sculptural work prior to the 1950s was monochromatic and focused on unmodulated linear and geometric relations, spatial ambiguity, and the perception of dimension, creating "maximum effect from minimum means." This series of works was completed while he taught at Black Mountain College as part of his continued exploration of optical illusions and arrangements of lines that generated conflict between perception (what one sees) and cognition