Here are a list of books to get more interesting content going on The Edge of Thought web site.
Most of these are difficult reads.
The Confessions of a Psychedelic Christian
The I Ching or Book of Changes
Jung Black Books
Jung’s Black Books, is available for pre-order, are facsimiles of the original documents of self-experimentation that eventually became Liber Novus, The Red Book.
The Red Book: Liber Novus
This is a waking dream journal.