Invisible City: Philadelphia and the Vernacular Avant-garde. Sid Sachs, Rachel Churner, Mierle Laderman Ukeles, Jennie
Hirsh, Allan Kaprow, Willoughby Sharp, Pamela Sharp, Robert Venturi. University of The Arts, 2020. 4to. 304 pp. Fine in Near
Fine dust jacket. Slight rubbing to jacket.