Unboxing Modernism: How the Russian Revolution Spurred Mid-Century Design

"... using little more than geometry to communicate the ideals of Bolshevism to a nation that was largely illiterate ..."

Possibly getting cynical in old age but sincerely doubt that the target audience were the peasants. They addressed that channel [1] with a slightly heavier (graphic) hand.

[1]: https://upload.wikimedia.org/wikipedia/en/a/aa/Tov_lenin_och...