The selection seems at once profligate and restrictive, the unfamiliar pieces, many of them deservedly obscure, failing to alter the hierarchy other curators have established of leading Conceptual artists, and the absence of video omitting the sharpest new tool artists in the 1960s and '70s used to upset standards of camera-made perception.

WSJ: Light Years: Conceptual Art and the Photograph, 1964-1977 | Snapshot of a Movement | By Richard B. Woodward