I know I'm super late to the party, but I just read my first Stephen King novel (Thinner) and absolutely devoured it.
I loved it, so I'm reading Pet Semetary and while it started a bit slow, it's got its hooks in me now. I've already got 4 more books lined up for when I'm done.
I don't even know why I didn't start sooner because I love horror, I used to read Goosebumps books as a kid constantly and I love films like The Shining and The Green Mile.
I'm working my way through the more well-known ones (IT, Cujo, Green Mile, Different Seasons etc) but can anyone recommend some deeper cuts that I might also enjoy? I've seen on a few rankings that Thinner is usually relatively low and I loved it so I'm looking forward to exploring his back catalogue!
I have only read a few Stephen King books so I can't really recommend any deep cuts (although I will say I do really enjoy his depiction of central Maine in Cell - he gets it), but lucky you if you find you really enjoy his work! King is so prolific you will have enough stories to keep you busy for the forseeable future.
What I really enjoy in his books I've read is how well he captures the mundane horror of the every day. My favorite book of his is The Stand and the section that has stuck with me for years afterwards is this one, almost random chapter where he outlines the fates of several unimportant and otherwise unmentioned people who avoided geing killed by captain trips.
I'm sure you've also been recommended The Dark Tower a bunch as well, to which I will only add - the audiobooks are great if you choose to delve into the series!