The influence of early American weird fiction, other than Poe, can still be seen today. Inspired by the recent HBO crime series "True Detective," references to stories by both Ambrose Bierce (1886) and Robert W. Chambers (1895) made their way into the dialogue and characters for the show. This is a great list to introduce you to their work and other important American fiction pioneers.
Tales That Created and Defined Dread Hastur, the King in Yellow, Nighted Yuggoth, and Dire Carcosa
Book - 1997