I really enjoy this poster, and the work of Yaakov Agam in general.
This poster is from an exhibition of Agam work at the Circle Gallery, and has an Agam optic experiment as its focus, that reminds me of a classic CMKY colour picker.
It also reminds me of the textile work (at least in form if not in colour use) of Anni Albers, which isn’t surprising, as they are both classed as belonging to the Op Art movement.