While there, he helped sell the works of, popularize and market the initial generation of Pop artists, including Andy Warhol, Roy Lichtenstein and Robert Rauschenberg.
[6] In the early 1960s, Karp led efforts to salvage architectural ornament from older New York City buildings that were being demolished for new construction.
He founded the Anonymous Arts Recovery Society and often drove around the streets of Manhattan and the Bronx spotting and collecting materials from building sites before they could be carted away as rubble.
[8] The Brooklyn Museum transferred 1500 architectural artifacts to the National Building Arts Center, located in Sauget, Illinois.
[9] Karp wrote a 1965 comic novel, "Doobie Doo", about love among pop artists with cover art by Roy Lichtenstein and Andy Warhol.