Essential, seems to me.

This seems definitive...

The Weird: A Compendium of Dark and Strange Stories edited by Ann and Jeff VanderMeer. Three quarters of a million words, 110 short stories and novellas, forward by Michael Moorcock (of course) and afterword by China Mieville (of course). Tediously in tune with my genre interests, I suppose, but I can't help myself. Supposed to be published in a couple of weeks, but the Amazon listing is ambiguous.. A sample of the table of contents. (amused to see "A Town of Cats", which is a story that features in the new Murakami novel.)

Clark Ashton Smith, “Genius Loci,” 1933

Hagiwara Sakutoro, “The Town of Cats,” 1935 (translation, Japan)

Hugh Walpole, “The Tarn,” 1936

Bruno Schulz, “Sanatorium at the Sign of the Hourglass,” 1937 (translation, Poland)

Robert Barbour Johnson, “Far Below,” 1939

Fritz Leiber, “Smoke Ghost,” 1941

Leonora Carrington, “White Rabbits,” 1941

Donald Wollheim, “Mimic,” 1942

Ray Bradbury, “The Crowd,” 1943

William Sansom, “The Long Sheet,” 1944

Jorge Luis Borges, “The Aleph,” 1945 (translation, Argentina)

Olympe Bhely-Quenum, “A Child in the Bush of Ghosts,” 1949 (Benin)

Shirley Jackson, “The Summer People,” 1950

Margaret St. Clair, “The Man Who Sold Rope to the Gnoles,” 1951

Robert Bloch, “The Hungry House,” 1951

Augusto Monterroso, “Mister Taylor,” 1952 (new translation by Larry Nolen, Guatemala)

Amos Tutuola, “The Complete Gentleman,” 1952 (Nigeria)

Jerome Bixby, “It’s a Good Life,” 1953

Julio Cortazar, “Axolotl,” 1956 (new translation by Gio Clairval, Argentina)