Geoffrey Charles Ryman (born 1951) is a science fiction and mainstream fiction writer.
He Was born in Canada, and has lived most of his life in England.
His science fiction and fantasy works include Air (2002).
His work 253, or Tube Theatre was first published as hypertext fiction on a Web site  (http://www.ryman-novel.com/). The print version was published in 1998 and won the Philip K. Dick Memorial Award