Fantasy Books or Other that influences D&D DMs

 https://www.enworld.org/threads/what-is-your-personal-appendix-n.703373/

Interesting lists. 

 art of Larry Elmore

-Prydain Chronicles
-The Sorcerer’s Scrapbook (best kid’s book of all time IMO)
-The Hobbit
-Dragonlance
-Fire Sea (part of a -7 part series written by Hickman and Weis but this was book 3 which I bought at an airport to read on the plane)
Edit: The Last Unicorn

Clark Ashton Smith: If there is one author from the AD&D Appendix N

https://en.wikipedia.org/wiki/Michael_Moorcock

The Blue Sword; The Hero and the Crown by Robin Mckinley

-The Belgariad by David Eddings
-The Blue Sword; The Hero and the Crown by Robin Mckinley
-The Saga of Pliocene Exile by Julian May (psionics!)
-The Wheel of Time by Robert Jordan
-Sailor Moon
-Mage: The Ascension
-The First Law trilogy by Joe Abercrombie
-The Wandering Inn

A Wizard of Earthsea

Ignoring the limit, here are some less important honorable mentions:
Redwall
Willow
Neverending Story
Spirited Away
Princess Mononoke
Jason and the Argonauts (Harryhausen)
Clash of the Titans (Harryhausen)
The Raven (movie)
Flight of Dragons
Mysterious Cities of Gold
Fantasia
Labyrinth