American born Treacy Ziegler was educated at the Pennsylvania Academy of Fine Art, and the University of Pennsylvania where she received a Master's Degree in 1980. Ziegler has been represented in group exhibitions since 1986, and solo exhibitions since 1991. She is the recipient of various grants and awards, including the Philadelphia Drawing Award.
Ziegler's prints have been described as confronting the drama of the human condition through symbols of our short earthly passage - the dwellings we inhabit, the chairs we occupy, the churches where we worship, the factories in which we work, the boats in which we sail. Her symbols are mostly vacant structures, but still bear the mark of the hand and spirit of man. These objects stand, as do Ziegler's other favourite theme, chairs, as manifests of a human presence.
Ziegler's chromatic palette is spare, intense and unmistakably personal, dominated by passages of yellow, which vary from a pale mimosa to an intense mustard. These brightly lit passages are played against contrasting masses of intense black or dense greens, violet and browns. Her conjunction of colours is challenging and often on the edge of a litmus-like acidity.
Each of Ziegler's colours has a satiny density, its brilliancy being achieved by a highly complex technique that demands hours of labour for each completed print. Each impression of her prints in her small editions of ten is unique. She combines a preparatory etched zinc tonal plate with subsequent colour impressions using museum board plates. She often manipulates the final pre-press layers of ink with manual strokes of a brush. Much of the glowing coalescing of colours in Ziegler's images is the result of printing each colour upon the next "wet in wet" so that the mutual saturation of the pigments results in a rich chromatic density.