1926 - The Murder of Roger Ackroyd
1927 - The Big Four1928 - The Mystery of the Blue Train
1932 - Peril at End House
1933 - Lord Edgware Dies (Thirteen at Dinner)
1935 - Death in the Clouds, Death in the Air
1936 - The A.B.C. Murders (The Alphabet Murders)
1936 - Murder in Mesopotamia
1936 - Cards on the Table
1937 - Dumb Witness (Poirot Loses a Client)
1938 - Appointment with Death
1938 - Hercule Poirot's Christmas (Murder for Christmas, A Holiday for Murder)
1940 - One, Two, Buckle My Shoe (An Overdose of Death, The Patriotic Murders)
1940 - Sad Cypress
1941 - Evil Under the Sun
1942 - Five Little Pigs (Murder in Retrospect)
1946 - The Hollow (Murder After Hours)
1948 - Taken at the Flood (There is a Tide...)
1953 - After the Funeral (Funerals are Fatal or Murder at the Gallop)
1955 - Hickory Dickory Dock (Hickory Dickory Death)1956 - Dead Man's Folly
1959 - Cat Among the Pigeons
1963 - The Clocks
1966 - Third Girl
1969 - Hallowe'en Party
1972 - Elephants Can Remember
1975 - Curtain ~ Poirot's last case, written four decades earlier
Miss Marple:
1930 - The Murder at the Vicarage
1942 - The Moving Finger (The Case of the Moving Finger)
1950 - A Murder is Announced
1953 - A Pocket Full of Rye
1965 - At Bertram's Hotel
1976 - Sleeping Murder ~ Miss Marple's last case, written four decades earlier
Tommy and Tuppence:
1968 - By the Pricking of My Thumbs
1922 - The Secret Adversary
Others:
1924 - The Man in the Brown Suit
1925 - The Secret of Chimneys
1934 - Why Didn't They Ask Evans?
1945 - Sparkling Cyanide, Remembered Death
1929 - The Seven Dials Mystery
1931 - The Sittaford Mystery, Murder at Hazelmoor
1944 - Death Comes as the End
1961 - The Pale Horse
1939 - Murder is Easy
1944 - Towards Zero
1951 - They Came to Baghdad
1939 - Ten Little Niggers
1954 - Destination Unknown
1958 - Ordeal by Innocence
1967 - Endless Night
1970 - Passenger to Frankfurt