CULTUREPhotos: Fashion LivesFern Mallis relives her iconic 92nd Street Y talks with a lively new book.by Sue Williamson04.01.151FASHION LIVES: Fashion Icons with Fern Mallis, $55, rizzoliusa.com.2Marc Jacobs and Mallis. Courtesy of Rizzoli.3Betsey Johnson. Courtesy of Rizzoli.4Mallis and Bill Cunningham. Courtesy of Rizzoli.5Calvin Klein. Courtesy of Rizzoli.6Diane Von Furstenberg and Mallis. Courtesy of Rizzoli.