For the past 20 years, Quaker Hill photographer Sue Parish has been photographing something special about Mexico.

The best of Parish’s two decades of photos are being exhibited now at Norwich Arts Center in a one-artist show titled “Twenty Years to Mexico: Photographs in Context.”

Parish describes her collection as a kind of scrap book. Its unifying theme, other than Mexico, is the peculiarity of the photographer’s eye, the aesthetic happenstance of scenes she has wandered into.

Without intending to formulate a theme, she found that her subjects could be characterized as “evidence of humans.” The photos rarely focus on people. Rather, they bring out the beauty of what people have left behind — a pastel patch of graffiti, the graceful curves of a bowl and bottle on a circular table, pale yellow stairs rising into a building, a population of VW bugs.

The NAC galleries are located at 60 Broadway. The galleries, open noon to 4 p.m. Thursday to Saturday, include ongoing exhibits by other eastern Connecticut artists and artisans.

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