"Primary Atmospheres" contains gems too numerous to mention. There's Peter Alexander, whose experiments with blocks of polyester resin cast pink transparencies ethereal enough for a meathead like Frank Gehry to compare them (favorably) to "pussy"; the vacuum-coated glass boxes of Larry Bell, which change color and opacity with every angle; and the back-painted wall-reliefs of Craig Kauffman, like Hall's lozenges oozing interior radiance.
And then there's John McCracken. The absolute nutter of the worldwide minimalist movement, this devotee of UFOs and astral projections has spent a lifetime making 2001: A Space Odyssey monoliths that embody color with the transcendence of reliquary blood. Fiberglass planks he polishes into alchemical totems, they materialize what Turrell, in a moment of verbal genius, referred to as the "self-reflexive act of looking at your looking." Which just goes to show: Sometimes less is not a bore, it's just plain magic.