All of the Agatha Christie novels would fall in this category, too, especially the Miss Marple ones.
The order of publication of Miss Marple books, minus short story collections (snatched from Wikipedia):
The Murder at the Vicarage (1930)
The Body in the Library (1942)
The Moving Finger (1943)
A Murder is Announced (1950)
They Do It with Mirrors, or Murder with Mirrors (1952)
A Pocket Full of Rye (1953)
4.50 from Paddington, or What Mrs. McGillicuddy Saw! (1957)
The Mirror Crack'd from Side to Side, or The Mirror Crack'd (1962)
A Caribbean Mystery (1964)
At Bertram's Hotel (1965)
Nemesis (1971)
Sleeping Murder (written around 1940, published 1976)