On your way to the magnificent Agnes Martin show at the Guggenheim, make a quick pit stop at Galerie Buchholz on East 82nd Street. The venerable gallery has staged a fascinating homage to the brilliant author, curator and critic Douglas Crimp and the many artist careers he directly and indirectly touched. His acclaimed “Pictures” show from 1977 at Artists Space and his important essay “Pictures” in October magazine influenced the careers of many artists like Cindy Sherman, Richard Prince, or Barbara Kruger; a group now known under the somewhat murky label “The Pictures Generation”. In 1971 Crimp organized a wonderful exhibition of Agnes Martin’s work at the Visual Arts Gallery followed by an astute essay examining the role of emotions in Martin’s work. In essence, Crimp was very much a child of the social upheavals that tore through 1970’s New York. He was an astute observer of the raunchy downtown arts scene and its devastating effects of the AIDS carnage that followed. His writings on re-presentation, the taking of a picture of a picture, were an important precursor to current questions of individualism and self-identification in the age of selfie manipulation, reality shows and manufactured online personalities. Here is Peter Hujar’s “Stephen Varble, Soho, Franklin Street I” from 1976. Douglas Crimp’s new book “Before Pictures” is on sale now. Through October 22.