The heady conceptualism that Riedel uses relies on a wry sense of humor that, at first glance, is easy to miss.

FORBES: The Armory Show: Michael Riedel at David Zwirner

Already excluded were both colour images and the mannered conceptualism of younger photographers whose work caters to the contemporary art market, for which he has scant regard.

ECONOMIST: Henri Cartier-Bresson