Thank you!

I really liked Festival of Fear by Graham Masterton.

pretty much anything from Stephen King? (though I only read some of his older books: Christine, It, The Shining, Carrie)

The Metro Series by Dmitri Alexejewitsch Gluchowski. Yes this is were the Metro games come from 😉 It's a mixture between Science-Fiction and Horror.

The Hellbound Heart by Clive Barker for example.

The Exorcist book is actually great

Hmm... nothing recent. Maybe Mary Shelley or Stephen King?
Thank you fro sharing!

Twilight. Although the horror comes from how bad it is.
The last horror genre book series I read was Goosebumps so I have no clue sadly. =(