Karshan’s drawings, prints and artist’s books are held in public and private collections, including in the UK: The British Library, The British Museum, The Courtauld Institute of Art, Sir John Soane’s Museum, Tate Modern, The Arts Council Collection – all in London, The Ashmolean Museum, Oxford, Kettle’s Yard, Cambridge, Middlesbrough Musuem of Modern Art (MIMA), Middlesbrough, England; in the US: Fine Arts Museums of San Francisco; Fogg Museum, Harvard University, Cambridge, MA; Walker Art Center, Minneapolis, MN; The Morgan Library, New York, NY; and a suite of thirteen prints have been recently acquired by the Metropolitan Museum of Art.