"[4][5] As the second gallery on West Broadway (following Paula Cooper who had opened in SoHo in 1968) OK Harris was instrumental in the area's development as a center of fine arts.
[5] In addition to being at the forefront of the Photorealism movement in 1969,[6] OK Harris was among the first galleries to exhibit the work of Duane Hanson,[7][8] Deborah Butterfield, Manny Farber, Richard Pettibone, Robert Cottingham, Robert Bechtle, Marilyn Levine, Nancy Rubins, Malcolm Morley, Luis Jiminez, Jake Berthot, Jack Goldstein, Porfirio DiDonna, Al Souza, Gregory Perkel.
OK Harris exhibited contemporary art and photography, and on occasion mounted shows of antiques and collectibles.
In its capacious 8000 square foot space,[9] it was able to mount up to five one-person shows simultaneously and has multiple such exhibitions in the course of a year.
[10] The gallery maintained a complete photographic archive on its exhibitions from the time of its inception, freely available to students and scholars for research.