Callahan

• Callahan's Crosstime Saloon (1977)
• Time Travelers Strictly Cash (1979)
• Callahan's Secret (1986)
• Callahan's Crazy Crosstime Bar (1988)
• Callahan's Lady (1989)
• Lady Slings the Booze (1992)
• The Callahan Touch (1993)
• Off the Wall at Callahan's (1994)
• Callahan's Legacy (1996)
• The Callahan Chronicals (1997)
• Callahan's Key (2000)
• Callahan's Con (2003)

Stardance (with Jeanne Robinson)

• Stardance (1979)
• Starseed (1991)
• Starmind (1995)
• The Star Dancers (1997)

Deathkiller

• Mindkiller (1982)
• Deathkiller (1996)
• Time Pressure (1987)
• Lifehouse (1997)

Telempath (1976)

Night of Power (1985)

Tales from the Planet Earth: A Novel with Nineteen Authors (1986) (with Lino Aldani, Brian Aldiss, Karl-Michael Armer, Jon Bing, Andre Carneiro, A Bertram Chandler, Ljuben Dilov, Tong Enzheng, Carlos Maria Federici, Harry Harrison, Sam J Lundwall, Joseph Nesvadba, Frederik Pohl, Tetsu Yano, Ye Yonglie and Janusz A Zajdel)

The Free Lunch (2001)

Very Bad Deaths (2004)

Antinomy (1980)(coll)

Melancholy Elephants (1984)(coll)

True Minds (1990)(coll)

User Friendly (1998)(coll)

By Any Other Name (2001)(coll)

God Is an Iron: And Other Stories (2002)(coll)

Best of All Possible Worlds (1980)(edited)

Kill the Editor (1991)(edited)

The Crazy Years: Reflections of a Science Fiction Original (2004)(NF)

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