A Scanner Darkly

J.R.R. Tolkien: The lord of the Rings (lost count) Philip K. Dick: Ubik, Flow My Tears The Policeman Said, A Scanner Darkly, etc. too many to count (many more than twice) William Gibson: everything at least twice Neal Stephenson: Snow crash (three times, I think) Clifford D. Simak: City H. P. Lovecraft: everything at least twice. There is a French compilation of The Dream-Quest of Unknown Kadath, The Silver Key, and Through the Gates of the Silver Key that I've read countless times. I've used two editions and I'm at my third. Maurice G. Dantec: Babylon Babies (three times) Possibly many others.

The Bible (technically working on my 2nd cover-to-cover readthrough, but have read individual books in it many times, especially the Gospel of Matthew). All of Kafka's novels, but especially "The Castle". Several of PKD's novels: "The Man in the High Castle", "Through a Scanner Darkly", "Ubiq" "The Silmarillion" (when I was a young adult) Douglas Adams' "Dirk Gentley's Holistic Detective Agency" (when I was a teenager)

A Scanner Darkly - Philip K Dick Neuromancer - William Gibson Expanded Universe - Robert A. Heinlein