THINKING OF Phillip K. Dick's recurrent dreams revealing, nap-by-nap, more specifics on a book to find: "[this time] I caught sight of the copyright date either 1966 or 1968 and another look at the typestyle"

"a large blue hardback book-- very large and long [...] the final word of the title being "Grove" and a word before it starting with a 'B' which could be blooming or budding or something." (Exegesis)



  and then IMAGINING Samuel R. Delany using this sort of revelation to write his books: what they look like, how much they weigh, a sense that an event narrated 2/3rds of the way through the book is made meaningful by a parallel event narrated roughly in the middle of the book, or just before.
5 or 40 facts like that, wherever they come from, seems like they'd be enough to imply the whole book. or a whole business