Importing some books from J.G Keely's suggested readings in fantasy.

From the above link:

The maddening intricacies of faerie courts have fascinated European fantasists for centuries, and many of the greatest have explored them, from Dunsany to Anderson to Clarke, but Warner is not to be outdone by any of them in this work. Sinister, strange, and sensual, her exploration of the wiles of the fey is an infectious sort of insanity, drawing in the reader while in the same breath disturbing them. Her prose is lovely, and perfectly controlled. Written late in her life, this is a work by a master of the form, and not a comma is out of place. Despite its title, she concentrates much more on the perfidies of Titania than the machinations of Oberon.