Thelwell in Orbit (1961)
A Leg at Each Corner (1962)
Thelwell's Riding Academy (1963)

Top Dog (1964)
Drawing Ponies (1966)
Up the Garden Path (1967)
Thelwell's Compleat Tangler (1967)
Thelwell's Book of Leisure (1968)
This Desirable Plot (1970)
The Effluent Society (1971)
Penelope (1972)
Three Sheets in the Wind (1973)
Belt Up (1974)
A Plank Bridge by a Pool (1978)
A Millstone Round My Neck (1981)
Pony Calvalcade (1981)
Some Damn Fool's Signed the Rubens Again (1982)
Penelope Rides Again (1988)
The Cat's Pyjamas (1992)
Magnificat (2002)

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