Dan Flavin organized fluorescent lights into eyeful towers, often leaving them untitled (with parenthetical dedications here and there) or with titles that were playfully descriptive (see: alternating pink and "gold"). This exhibition does as it claims, focusing on such works as the blue, square-unit rarity untitled (to Helga and Carlo, with respect and affection), which was part of his "barriers," and nominal three (to William of Ockham), a six-light salute to the philosopher of Razor illustriousness. Other sculptural configurations include nine, red-supreme works that comprise the 1968 series two primary series and one secondary, and a sequence of colorful late works.