all good books with the main plot of a character becoming progressively insane? i love the way that authors portray the abstract thoughts of the schizophrenic/psychotic.
Schizo books
Bentley Johnson
Henry Foster
Not really "insanity", but Crime and Punishment seems an obvious pick here for what you want.
Grayson Russell
The Tomb by H.P. Lovecraft
it's a short story, but I'm sure you'll be satisfied
Christopher Kelly
Diary of a Madman by Gogol and Dostoevsky's derivative of it, The Double.
Ayden Walker
Wouldn't everything by Lovecraft fit the bill here?
Grayson Morales
I've only read the tomb and the call of cthulu so far, I have a book of his complete works
Gabriel Roberts
im also interested in this
also
Dostoyevsky is fucking garbage
Brayden Green
for those looking for insanius books, google clowns and browns, the micheal heisman suicide note, the unabomber manifesto
Carter Lewis
Kill yourself
Jacob Sanders
commit immediate suicide