Artist Robert Knight's long-exposure photography visualizes people's nocturnal movements as they sleep, or don't, throughout the night. His photo project, Sleepless, consists of ghostly ...

When Robert Knight became executive director of the Tucson Museum of Art in 2005, he stepped into an organization that had suffered through two tumultuous years marked by staff, board and donor ...

Robert A. Knight, 90, a prolific commercial artist whose portfolio includes sweeping watercolor scenes of Philadelphia-area landscapes, lush golf courses, and vibrant program covers for the ...

In their last group exhibition, Knight’s works were featured alongside those of other artists such as Giovanni Battista Piranesi, Niki de Saint Phalle, François Rouan, Erwin Lang, Victor Vasarely, ...