Graham Nelson
Graham Nelson (born 1967?) is the creator of the Inform design system for creating interactive fiction (IF) games. He also authored several IF games, the most important ones being Curses (1993) and Jigsaw (1995). Finally, he is the author of the Inform Designer's Manual, which includes one of the first published works of interactive fiction theory, an essay entitled "The Craft of Adventure." The Fourth Edition of the Inform Designer's Manual is freely available at the Inform homepage, and a print edition is published by The Interactive Fiction Library. (ISBN 0-9713119-0-0)