Verena Loewensberg (1912–1986). Along with Richard Paul Lohse, Max Bill and Camille Graeser, Loewensberg was one of the inner circle of Concrete artists in Zurich. Unlike her male colleagues, however, she eschewed all theoretical underpinning of her creative work and consistently refused to give her paintings titles. She wanted them to speak for themselves. The unusual color palette is another distinguishing feature of her oeuvre. Nevertheless, she cultivated a reductionist approach and an adherence to logical mathematical systems.