Spooky supernatural folklore books

I'm looking for some collections of stories about supernatural, ghosts (not like interacting with ghost but more like a spirit or a presence). Better if related to folklore or with natural setting. Also some castle and woods setting is fine.
Not searching for real heavy horror stories, something definitely lighter.

I've also read Holly Black's Folk of the air and I'm now interested in general Fae folklore and history.
As exhaustive as possible.