Sorting these covers by decade
The Heart is a Lonely Hunter by decade
Carson McCullers
22 covers from 21 printings with a known year, 2010s back to 1940s
2010s
2 covers · 2 publishers, Planeta Publishing and Seix Barral among them
2000s
6 covers · 2 of 8 printings say other · 6 publishers, Mariner and HarperAudio among them
1990s
5 covers · 2 of 5 printings say hardcover · 4 publishers, Penguin Books and Modern Library among them · 2 languages
1980s
1 cover · 1 publisher, Hutchinson
1970s
1 cover · 2 publishers, Diogenes and Diogenes Verlag among them
1960s
2 covers · 2 publishers, Bantam Books and Houghton Mifflin among them
1950s
3 covers · 1 publisher, Bantam Books
1940s
2 covers · 2 publishers, Houghton Mifflin company and Amsco School Pubns Inc among them
Covers from Open Library, each in the decade of the earliest printing that carries it. What the catalogues never scanned is missing here too. See the whole wall.