What's your "Appendix N"?

"Appendix N" is the collection of books that inspired Gygax himself to make D&D (for those who don't know). I find this discussion interesting and I was looking to greatly expand my current Appendix N (and was just genuinely curious).
Note: Pretty much any type of media is allowed (not just literature), Shows, Movies, Video Games, Blogs, Youtube Videos, Music, Etc...

What is currently part of MY Appendix N (This isn't ALL of it, but is the ones that had the most impact): Adventure Time (Pendleton Ward), Avatar: The Last Airbender (Michael Dante DiMartino & Bryan Konietzko), Blasphemous (The Game Kitchen), Shin Megami Tensei (Atlus), The Legend of Zelda: Breath of the Wild (Nintendo), Thomas Cole's Paintings, Various Blog Posts & Youtube Videos (that I somewhat plan to elaborate upon further if I ever return to this after I've finished my big media binge).