James Kalm visits the exhibition Ward Jackson: Black and White Diamonds 1960s at Minus Space, New York, on view through October 25, 2014.

The press release notes that Jackson said of his work: “The diamond shape (or square on end) has the meditative power of a mandala and expands in a way that an ordinary square does not, since the measurement of the diameter across the center is wider than any of the outer or peripheral edges… Most of the diamond paintings have a vertical emphasis or rising energy expressing an outer as well as inner architecture, transmitting transcendental feeling through pure plastic elements. I have attempted to embody in my work an inner order that could express my most concentrated ideas.” Kalm's walkthrough includes an interview with Ward Jackson's nephew Julian Jackson and Rene Lynch.