The Mercenaries (aka The Smashers, The Cutie) (1960)
Killing Time (aka The Operator) (1961 )
Killy (1963)
Pity Him Afterwards (1964)
The Fugitive Pigeon (1965)
The Busy Body (1966)
The Spy in the Ointment (1966)
God Save the Mark (1967)
Philip (1967)
Who Stole Sassi Manoon? (1968)
Up Your Banners (1969)
The Hot Rock (1970)
Adios Scheherazade (1970)
I Gave at the Office (1971)
Bank Shot (1972)
Cops and Robbers (1972)
Gangway (with Brian Garfield) (1973 )
Help I Am Being Held Prisoner (1974)
Jimmy the Kid (1974)
Two Much (1975)
Dancing Aztecs (1976)
Nobody’s Perfect (1977)
Castle in the Air (1980)
Kahawa (1981)
Why Me (1983)
A Likely Story (1984)
High Adventure (1985)
Good Behavior (1985)
High Jinx (with AbbyWestlake) (1987)
Transylvania Station (with Abby Westlake) (1987)
Trust Me on This (1988)
Sacred Monster (1989)
Drowned Hopes (1990)
The Perfect Murder (with Block, Caudwell, Hillerman and Lovesey) (1991)
Humans (1992)
Don’t Ask (1993)
Baby, Would I Lie? (1994)
Smoke (1995)
What’s the Worst That Could Happen? (1996)
The Ax (1997)
The Hook (2000)
Bad News (2001)
Put a Lid on It (2002)
Money for Nothing (2003)
The Road to Ruin (2004)
Watch Your Back! (2005)
What’s So Funny? (2007)
Get Real (2009)
Call me a Cab (2022)
Pulp, Crime, & Mystery Books 