- Richard Serra: The Coagula Interview By Mark Simmons Main Directory contact us here: coagulaeditor@hotmail.com Sculptor Richard Serra was interviewed by Mark Simmons at the Los Angeles Museum of Contemporary Art, just prior to the opening of Serra's show at the Museum's Geffen Contemporary building. Mark Simmons works as a preparator at the museum and helped install the show. Mark Simmons: In an ...www.coagula.com/serra.html