S. John Ross is an RPG writer who began work in the early 1990s for Steve Jackson Games and the Avalon Hill Game Company. Since then he’s written, designed, edited and graphically produced RPG works for publishers including Last Unicorn, Hero Games, TSR, Wizards of the Coast, Flying Buffalo, Guardians of Order and others. Sometime around 1999, he began edging away from freelance work and focusing more on his own company, Cumberland Games & Diversions. He still works occasionally for other publishers, including work in 2005 with Steven S. Long, continuing a friendship that began when the two writers worked together on the Last Unicorn Games Star Trek roleplaying game series.