Here are some things that have been useful to me, and some other things that may be useful to you. :)

Podcasts I Like

Spooked - Fantastic listener-submitted scary stories!

The Black Tapes - a truly horrifying fiction podcast. One of the first pieces of horror media to start me writing horror comics.

Spirits - a mythology and lore podcast. Check out their urban legend series!

Dirty Old Ladies - an indie comics podcast that doles out some great advice.

Books on Comics

Making Comics by Scott McCloud

Understanding Comics by Scott McCloud

Books I Admire

The Island - Joy San

Through the Woods - Emily Carrol

As The Crow Flies - Melanie Gillman

Calvin & Hobbes - Bill Watterson

AKIRA by Katsuhiro Otomo

Odd Noises - Trevor Henderson

Other Stuff

My horror book recommendations (Twitter)

My learnings from reading 50 horror books in 2018 (Twitter)

My Goodreads account