• The Anderson Tapes (1969)
• The First Deadly Sin (1973)
• The Second Deadly Sin (1977)
• The Third Deadly Sin (1981)
• The Fourth Deadly Sin (1985)

• The Tangent Factor (1976)
• The Tangent Objective (1976)

• The Sixth Commandment (1978)
• The Tenth Commandment (1980)
• The Eighth Commandment (1986)
• The Seventh Commandment (1991)

• The Timothy File (1987)
• Timothy's Game (1988)

• McNally's Secret (1991)
• McNally's Luck (1992)
• McNally's Risk (1993)
• McNally's Caper (1994)
• McNally's Trial (1995)
• McNally's Puzzle (1996)
• McNally's Gamble (1997)

Written with or by Vincent Lardo

• McNally's Dilemma (1999)
• McNally's Folly (2000)
• McNally's Chance (2001)
• McNally's Alibi (2002)
• McNally's Dare (2003)
• McNally's Bluff (2004)

• The Pleasures of Helen (1971)
• Love Songs (1972)
• The Tomorrow File (1975)
• The Marlow Chronicles (1977)
• Caper (1980)
• The Dark Summer (1980)
• The Case of Lucy Bending (1982)
• The Seduction of Peter S (1983)
• The Passion of Molly T (1984)
• The Loves of Harry Dancer (1985)
• Tales of the Wolf (1986)
• The Dream Lover (1986)
• Capital Crimes (1989)
• Stolen Blessings (1990)
• Sullivan's Sting (1990)
• Private Pleasures (1993)
• Guilty Pleasures (1998)