A Rare Look at Bob Greenberg's Collection of 'Outsider Art'

Bob Greenberg, the digital effects pioneer, legendary adman and founder of creative Goliath R/GA has, as you might expect, an impressive view from his New York office. Through its double set of casement windows, Greenberg can look out on a leafy courtyard and the bustle of West 39th Street in Hell's Kitchen. But as he works, Greenberg actually turns his back to that view. Instead, as he sits at his desk, he faces a wall—a wall hung with an enormous piece of art called "History of the Plant Farm Museum," painted by Howard Finster in 1982. The titanic canvas is among the 1,100 pieces of art in Greenberg's collection, one he's been building since the early 1980s. (A gallery follows below.)